Vulnerabilities > CVE-2015-7512 - Classic Buffer Overflow vulnerability in multiple products
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0658-1.NASL description Xen was updated to fix the following vulnerabilities : CVE-2014-0222: Qcow1 L2 table size integer overflows (bsc#877642) CVE-2015-4037: Insecure temporary file use in /net/slirp.c (bsc#932267) CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463) CVE-2015-7504: Heap buffer overflow vulnerability in pcnet emulator (XSA-162, bsc#956411) CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting (XSA-152, bsc#950706) CVE-2015-8104: Guest to host DoS by triggering an infinite loop in microcode via #DB exception (bsc#954405) CVE-2015-5307: Guest to host DOS by intercepting #AC (XSA-156, bsc#953527) CVE-2015-8339: XENMEM_exchange error handling issues (XSA-159, bsc#956408) CVE-2015-8340: XENMEM_exchange error handling issues (XSA-159, bsc#956408) CVE-2015-7512: Buffer overflow in pcnet last seen 2020-06-01 modified 2020-06-02 plugin id 89723 published 2016-03-07 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/89723 title SUSE SLES10 Security Update : Xen (SUSE-SU-2016:0658-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3470.NASL description Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution on x86 hardware. - CVE-2015-7295 Jason Wang of Red Hat Inc. discovered that the Virtual Network Device support is vulnerable to denial-of-service (via resource exhaustion), that could occur when receiving large packets. - CVE-2015-7504 Qinghao Tang of Qihoo 360 Inc. and Ling Liu of Qihoo 360 Inc. discovered that the PC-Net II ethernet controller is vulnerable to a heap-based buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-7512 Ling Liu of Qihoo 360 Inc. and Jason Wang of Red Hat Inc. discovered that the PC-Net II ethernet controller is vulnerable to a buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-8345 Qinghao Tang of Qihoo 360 Inc. discovered that the eepro100 emulator contains a flaw that could lead to an infinite loop when processing Command Blocks, eventually resulting in denial-of-service (via application crash). - CVE-2015-8504 Lian Yihan of Qihoo 360 Inc. discovered that the VNC display driver support is vulnerable to an arithmetic exception flaw that could lead to denial-of-service (via application crash). - CVE-2015-8558 Qinghao Tang of Qihoo 360 Inc. discovered that the USB EHCI emulation support contains a flaw that could lead to an infinite loop during communication between the host controller and a device driver. This could lead to denial-of-service (via resource exhaustion). - CVE-2015-8743 Ling Liu of Qihoo 360 Inc. discovered that the NE2000 emulator is vulnerable to an out-of-bound read/write access issue, potentially resulting in information leak or memory corruption. - CVE-2016-1568 Qinghao Tang of Qihoo 360 Inc. discovered that the IDE AHCI emulation support is vulnerable to a use-after-free issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1714 Donghai Zhu of Alibaba discovered that the Firmware Configuration emulation support is vulnerable to an out-of-bound read/write access issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1922 Ling Liu of Qihoo 360 Inc. discovered that 32-bit Windows guests support is vulnerable to a NULL pointer dereference issue, that could lead to denial-of-service (via application crash). last seen 2020-06-01 modified 2020-06-02 plugin id 88629 published 2016-02-09 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88629 title Debian DSA-3470-1 : qemu-kvm - security update NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-439.NASL description xen was updated to version 4.4.4 to fix 33 security issues. These security issues were fixed : - CVE-2016-2392: NULL pointer dereference in remote NDIS control message handling (bsc#967012). - CVE-2015-5239: Integer overflow in vnc_client_read() and protocol_client_msg() (bsc#944463). - CVE-2016-2270: Xen allowed local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings (boo#965315). - CVE-2016-2538: Integer overflow in remote NDIS control message handling (bsc#967969). - CVE-2015-7512: Buffer overflow in the pcnet_receive function in hw/net/pcnet.c, when a guest NIC has a larger MTU, allowed remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet (boo#962360). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (boo#962611). - CVE-2015-5278: Infinite loop in ne2000_receive() function (bsc#945989). - CVE-2016-1568: AHCI use-after-free vulnerability in aio port commands (bsc#961332). - CVE-2016-1981: e1000 infinite loop in start_xmit and e1000_receive_iov routines (bsc#963782). - CVE-2016-2198: EHCI NULL pointer dereference in ehci_caps_write (bsc#964413). - CVE-2015-6815: e1000: infinite loop issue (bsc#944697). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (boo#964925). - CVE-2015-6855: hw/ide/core.c did not properly restrict the commands accepted by an ATAPI device, which allowed guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash (boo#965156). - CVE-2016-2271: VMX in using an Intel or Cyrix CPU, allowed local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP (boo#965317). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (boo#964452). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (boo#962642). - CVE-2015-1779: The VNC websocket frame decoder allowed remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section (boo#962632). - CVE-2013-4530: Buffer overflow in hw/ssi/pl022.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted tx_fifo_head and rx_fifo_head values in a savevm image (boo#964950). - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (boo#964644). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (boo#962758). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (boo#962335). - CVE-2015-8345: eepro100: infinite loop in processing command block list (bsc#956829). - CVE-2015-8613: scsi: stack based buffer overflow in megasas_ctrl_get_info (bsc#961358). - CVE-2015-8619: Stack based OOB write in hmp_sendkey routine (bsc#960334). - CVE-2016-1571: The paging_invlpg function in include/asm-x86/paging.h, when using shadow mode paging or nested virtualization is enabled, allowed local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check (boo#960862). - CVE-2016-1570: The PV superpage functionality in arch/x86/mm.c allowed local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates (boo#960861). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-05 modified 2016-04-13 plugin id 90478 published 2016-04-13 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/90478 title openSUSE Security Update : xen (openSUSE-2016-439) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2015-2694.NASL description From Red Hat Security Advisory 2015:2694 : Updated qemu-kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU last seen 2020-06-01 modified 2020-06-02 plugin id 87636 published 2015-12-29 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87636 title Oracle Linux 6 : qemu-kvm (ELSA-2015-2694) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3471.NASL description Several vulnerabilities were discovered in qemu, a full virtualization solution on x86 hardware. - CVE-2015-7295 Jason Wang of Red Hat Inc. discovered that the Virtual Network Device support is vulnerable to denial-of-service, that could occur when receiving large packets. - CVE-2015-7504 Qinghao Tang of Qihoo 360 Inc. and Ling Liu of Qihoo 360 Inc. discovered that the PC-Net II ethernet controller is vulnerable to a heap-based buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-7512 Ling Liu of Qihoo 360 Inc. and Jason Wang of Red Hat Inc. discovered that the PC-Net II ethernet controller is vulnerable to a buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-7549 Qinghao Tang of Qihoo 360 Inc. and Ling Liu of Qihoo 360 Inc. discovered that the PCI MSI-X emulator is vulnerable to a NULL pointer dereference issue, that could lead to denial-of-service (via application crash). - CVE-2015-8345 Qinghao Tang of Qihoo 360 Inc. discovered that the eepro100 emulator contains a flaw that could lead to an infinite loop when processing Command Blocks, eventually resulting in denial-of-service (via application crash). - CVE-2015-8504 Lian Yihan of Qihoo 360 Inc. discovered that the VNC display driver support is vulnerable to an arithmetic exception flaw that could lead to denial-of-service (via application crash). - CVE-2015-8550 Felix Wilhelm of ERNW Research discovered that the PV backend drivers are vulnerable to double fetch vulnerabilities, possibly resulting in arbitrary code execution. - CVE-2015-8558 Qinghao Tang of Qihoo 360 Inc. discovered that the USB EHCI emulation support contains a flaw that could lead to an infinite loop during communication between the host controller and a device driver. This could lead to denial-of-service (via resource exhaustion). - CVE-2015-8567 CVE-2015-8568 Qinghao Tang of Qihoo 360 Inc. discovered that the vmxnet3 device emulator could be used to intentionally leak host memory, thus resulting in denial-of-service. - CVE-2015-8613 Qinghao Tang of Qihoo 360 Inc. discovered that the SCSI MegaRAID SAS HBA emulation support is vulnerable to a stack-based buffer overflow issue, that could lead to denial-of-service (via application crash). - CVE-2015-8619 Ling Liu of Qihoo 360 Inc. discovered that the Human Monitor Interface support is vulnerable to an out-of-bound write access issue that could result in denial-of-service (via application crash). - CVE-2015-8743 Ling Liu of Qihoo 360 Inc. discovered that the NE2000 emulator is vulnerable to an out-of-bound read/write access issue, potentially resulting in information leak or memory corruption. - CVE-2015-8744 The vmxnet3 driver incorrectly processes small packets, which could result in denial-of-service (via application crash). - CVE-2015-8745 The vmxnet3 driver incorrectly processes Interrupt Mask Registers, which could result in denial-of-service (via application crash). - CVE-2016-1568 Qinghao Tang of Qihoo 360 Inc. discovered that the IDE AHCI emulation support is vulnerable to a use-after-free issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1714 Donghai Zhu of Alibaba discovered that the Firmware Configuration emulation support is vulnerable to an out-of-bound read/write access issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1922 Ling Liu of Qihoo 360 Inc. discovered that 32-bit Windows guests support is vulnerable to a NULL pointer dereference issue, that could lead to denial-of-service (via application crash). - CVE-2016-1981 The e1000 driver is vulnerable to an infinite loop issue that could lead to denial-of-service (via application crash). last seen 2020-06-01 modified 2020-06-02 plugin id 88630 published 2016-02-09 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88630 title Debian DSA-3471-1 : qemu - security update NASL family Fedora Local Security Checks NASL id FEDORA_2015-12A089920E.NASL description eepro100: Prevent two endless loops [CVE-2015-8345], pcnet: fix rx buffer overflow [CVE-2015-7512], ui: vnc: avoid floating point exception [CVE-2015-8504], additional patch for [XSA-158, CVE-2015-8338] long running memory operations on ARM [XSA-158, CVE-2015-8338] XENMEM_exchange error handling issues [XSA-159, CVE-2015-8339, CVE-2015-8340] libxl leak of pv kernel and initrd on error [XSA-160, CVE-2015-8341] ---- heap buffer overflow vulnerability in pcnet emulator [XSA-162, CVE-2015-7504], virtual PMU is unsupported [XSA-163] Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-03-04 plugin id 89151 published 2016-03-04 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89151 title Fedora 23 : xen-4.5.2-5.fc23 (2015-12a089920e) NASL family Scientific Linux Local Security Checks NASL id SL_20151222_QEMU_KVM_ON_SL6_X.NASL description A heap-based buffer overflow flaw was discovered in the way QEMU last seen 2020-03-18 modified 2015-12-29 plugin id 87639 published 2015-12-29 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87639 title Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64 (20151222) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2828-1.NASL description Jason Wang discovered that QEMU incorrectly handled the virtio-net device. A remote attacker could use this issue to cause guest network consumption, resulting in a denial of service. (CVE-2015-7295) Qinghao Tang and Ling Liu discovered that QEMU incorrectly handled the pcnet driver when used in loopback mode. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2015-7504) Ling Liu and Jason Wang discovered that QEMU incorrectly handled the pcnet driver. A remote attacker could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2015-7512) Qinghao Tang discovered that QEMU incorrectly handled the eepro100 driver. A malicious guest could use this issue to cause an infinite loop, leading to a denial of service. (CVE-2015-8345). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 87205 published 2015-12-04 reporter Ubuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87205 title Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : qemu, qemu-kvm vulnerabilities (USN-2828-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0873-1.NASL description xen was updated to fix 44 security issues. These security issues were fixed : - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#864655). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (bsc#864811). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#864391). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#864769). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#864805). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642). - CVE-2014-3640: The sosendto function in slirp/udp.c allowed local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket (bsc#897654). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#901508). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#902737). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-01 modified 2020-06-02 plugin id 90186 published 2016-03-25 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90186 title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:0873-1) NASL family F5 Networks Local Security Checks NASL id F5_BIGIP_SOL63519101.NASL description CVE-2014-8106 Heap-based buffer overflow in the Cirrus VGA emulator (hw/display/cirrus_vga.c) in QEMU before 2.2.0 allows local guest users to execute arbitrary code via vectors related to blit regions. NOTE: this vulnerability exists because an incomplete fix for CVE-2007-1320. CVE-2015-3209 Heap-based buffer overflow in the PCNET controller in QEMU allows remote attackers to execute arbitrary code by sending a packet with TXSTATUS_STARTPACKET set and then a crafted packet with TXSTATUS_DEVICEOWNS set. CVE-2015-5165 The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors. CVE-2015-5279 Heap-based buffer overflow in the ne2000_receive function in hw/net/ne2000.c in QEMU before 2.4.0.1 allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via vectors related to receiving packets. CVE-2015-7504 Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode. CVE-2015-7512 Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet. Impact An attacker may be able to cause a denial of service (DoS) or execute arbitrary code if using the virtual drivers specified in these CVE descriptions. last seen 2020-03-17 modified 2016-02-17 plugin id 88770 published 2016-02-17 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88770 title F5 Networks BIG-IP : Multiple QEMU vulnerabilities (K63519101) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-252.NASL description This update fixes the following security issues : - Enforce receive packet size, thus eliminating buffer overflow and potential security issue. (bsc#957162 CVE-2015-7512) - Infinite loop in processing command block list. CVE-2015-8345 (bsc#956829) : This update also fixes a non-security bug : - Due to space restrictions in limited bios data areas, don last seen 2020-06-05 modified 2016-02-24 plugin id 88925 published 2016-02-24 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/88925 title openSUSE Security Update : qemu (openSUSE-2016-252) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2016-0051.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - kvm-Add-vga.h-unmodified-from-Linux.patch [bz#1331407] - kvm-vga.h-remove-unused-stuff-and-reformat.patch [bz#1331407] - kvm-vga-use-constants-from-vga.h.patch [bz#1331407] - kvm-vga-Remove-some-should-be-done-in-BIOS-comments.patc h [bz#1331407] - kvm-vga-fix-banked-access-bounds-checking-CVE-2016-3710. patch [bz#1331407] - kvm-vga-add-vbe_enabled-helper.patch [bz#1331407] - kvm-vga-factor-out-vga-register-setup.patch [bz#1331407] - kvm-vga-update-vga-register-setup-on-vbe-changes.patch [bz#1331407] - kvm-vga-make-sure-vga-register-setup-for-vbe-stays-intac .patch - Resolves: bz#1331407 (EMBARGOED CVE-2016-3710 qemu-kvm: qemu: incorrect banked access bounds checking in vga module [rhel-6.8.z]) - Revert last seen 2020-06-01 modified 2020-06-02 plugin id 91316 published 2016-05-25 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91316 title OracleVM 3.4 : qemu-kvm (OVMSA-2016-0051) NASL family Fedora Local Security Checks NASL id FEDORA_2015-08E4AF5A20.NASL description eepro100: Prevent two endless loops [CVE-2015-8345] (#1285215), pcnet: fix rx buffer overflow [CVE-2015-7512], ui: vnc: avoid floating point exception [CVE-2015-8504], additional patch for [XSA-158, CVE-2015-8338] long running memory operations on ARM [XSA-158, CVE-2015-8338] XENMEM_exchange error handling issues [XSA-159, CVE-2015-8339, CVE-2015-8340] libxl leak of pv kernel and initrd on error [XSA-160, CVE-2015-8341] ---- heap buffer overflow vulnerability in pcnet emulator [XSA-162, CVE-2015-7504], virtual PMU is unsupported [XSA-163] Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-03-04 plugin id 89135 published 2016-03-04 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89135 title Fedora 22 : xen-4.5.2-5.fc22 (2015-08e4af5a20) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0020-1.NASL description This update for kvm fixes the following issues : Security issues fixed : - CVE-2015-7512: The receive packet size is now checked in the emulated pcnet driver, eliminating buffer overflow and potential security issue by malicious guest systems. (bsc#957162) - CVE-2015-8345: A infinite loop in processing command block list was fixed that could be exploit by malicious guest systems (bsc#956829). Bugs fixed : - Fix cases of wrong clock values in kvmclock timekeeping (bsc#947164 and bsc#953187) - Enforce pxe rom sizes to ensure migration compatibility. (bsc#950590) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 87859 published 2016-01-12 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87859 title SUSE SLED11 / SLES11 Security Update : kvm (SUSE-SU-2016:0020-1) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201602-01.NASL description The remote host is affected by the vulnerability described in GLSA-201602-01 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A remote attacker might cause a Denial of Service or gain escalated privileges from a guest VM. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 88587 published 2016-02-05 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88587 title GLSA-201602-01 : QEMU: Multiple vulnerabilities (Venom) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0955-1.NASL description xen was updated to fix 47 security issues. These security issues were fixed : - CVE-2013-4527: Buffer overflow in hw/timer/hpet.c might have allowed remote attackers to execute arbitrary code via vectors related to the number of timers (bnc#864673). - CVE-2013-4529: Buffer overflow in hw/pci/pcie_aer.c allowed remote attackers to cause a denial of service and possibly execute arbitrary code via a large log_num value in a savevm image (bnc#864678). - CVE-2013-4530: Buffer overflow in hw/ssi/pl022.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted tx_fifo_head and rx_fifo_head values in a savevm image (bnc#864682). - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#864655). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (bsc#864811). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#864391). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#864769). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#864805). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642). - CVE-2014-3640: The sosendto function in slirp/udp.c allowed local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket (bsc#897654). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#901508). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#902737). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-01 modified 2020-06-02 plugin id 90396 published 2016-04-07 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90396 title SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2016:0955-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1745-1.NASL description xen was updated to fix 36 security issues. These security issues were fixed : - CVE-2013-4527: Buffer overflow in hw/timer/hpet.c might have allowed remote attackers to execute arbitrary code via vectors related to the number of timers (bnc#864673). - CVE-2013-4529: Buffer overflow in hw/pci/pcie_aer.c allowed remote attackers to cause a denial of service and possibly execute arbitrary code via a large log_num value in a savevm image (bnc#864678). - CVE-2013-4530: Buffer overflow in hw/ssi/pl022.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted tx_fifo_head and rx_fifo_head values in a savevm image (bnc#864682). - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#864655). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (bsc#864811). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#864391). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#864769). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#864805). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642). - CVE-2014-3640: The sosendto function in slirp/udp.c allowed local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket (bsc#897654). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#901508). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#902737). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-01 modified 2020-06-02 plugin id 93177 published 2016-08-29 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93177 title SUSE SLES11 Security Update : xen (SUSE-SU-2016:1745-1) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_405446F4B1B311E59728002590263BF5.NASL description Prasad J Pandit, Red Hat Product Security Team, reports : Qemu emulator built with the AMD PC-Net II Ethernet Controller support is vulnerable to a heap buffer overflow flaw. While receiving packets in the loopback mode, it appends CRC code to the receive buffer. If the data size given is same as the receive buffer size, the appended CRC code overwrites 4 bytes beyond this last seen 2020-06-01 modified 2020-06-02 plugin id 87691 published 2016-01-04 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87691 title FreeBSD : qemu and xen-tools -- denial of service vulnerabilities in AMD PC-Net II NIC support (405446f4-b1b3-11e5-9728-002590263bf5) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-2694.NASL description Updated qemu-kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU last seen 2020-06-01 modified 2020-06-02 plugin id 87637 published 2015-12-29 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87637 title RHEL 6 : qemu-kvm (RHSA-2015:2694) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1154-1.NASL description xen was updated to fix 27 security issues. These security issues were fixed : - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#864655). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (bsc#864811). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#864391). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#864769). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#864805). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642). - CVE-2014-3640: The sosendto function in slirp/udp.c allowed local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket (bsc#897654). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#901508). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#902737). - CVE-2015-5278: Infinite loop in ne2000_receive() function (bsc#945989). - CVE-2015-7512: Buffer overflow in the pcnet_receive function in hw/net/pcnet.c, when a guest NIC has a larger MTU, allowed remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet (bsc#957162). - CVE-2015-8504: VNC: floating point exception (bsc#958491). - CVE-2015-8550: Paravirtualized drivers were incautious about shared memory contents (XSA-155) (bsc#957988). - CVE-2015-8554: qemu-dm buffer overrun in MSI-X handling (XSA-164) (bsc#958007). - CVE-2015-8555: Information leak in legacy x86 FPU/XMM initialization (XSA-165) (bsc#958009). - CVE-2015-8558: Infinite loop in ehci_advance_state resulted in DoS (bsc#959005). - CVE-2015-8743: ne2000: OOB memory access in ioport r/w functions (bsc#960725). - CVE-2015-8745: Reading IMR registers lead to a crash via assert(2) call (bsc#960707). - CVE-2016-1570: The PV superpage functionality in arch/x86/mm.c allowed local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates (bsc#960861). - CVE-2016-1571: VMX: intercept issue with INVLPG on non-canonical address (XSA-168) (bsc#960862). - CVE-2016-1714: nvram: OOB r/w access in processing firmware configurations (bsc#961691). - CVE-2016-1981: e1000 infinite loop in start_xmit and e1000_receive_iov routines (bsc#963782). - CVE-2016-2270: Xen allowed local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings (bsc#965315). - CVE-2016-2271: VMX when using an Intel or Cyrix CPU, allowed local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP (bsc#965317). - CVE-2016-2391: usb: multiple eof_timers in ohci module lead to NULL pointer dereference (bsc#967013). - CVE-2016-2841: ne2000: Infinite loop in ne2000_receive (bsc#969350). - XSA-166: ioreq handling possibly susceptible to multiple read issue (bsc#958523). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 90759 published 2016-04-27 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90759 title SUSE SLES11 Security Update : xen (SUSE-SU-2016:1154-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3469.NASL description Several vulnerabilities were discovered in qemu, a full virtualization solution on x86 hardware. - CVE-2015-7295 Jason Wang of Red Hat Inc. discovered that the Virtual Network Device support is vulnerable to denial-of-service (via resource exhaustion), that could occur when receiving large packets. - CVE-2015-7504 Qinghao Tang of Qihoo 360 Inc. and Ling Liu of Qihoo 360 Inc. discovered that the PC-Net II ethernet controller is vulnerable to a heap-based buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-7512 Ling Liu of Qihoo 360 Inc. and Jason Wang of Red Hat Inc. discovered that the PC-Net II ethernet controller is vulnerable to a buffer overflow that could result in denial-of-service (via application crash) or arbitrary code execution. - CVE-2015-8345 Qinghao Tang of Qihoo 360 Inc. discovered that the eepro100 emulator contains a flaw that could lead to an infinite loop when processing Command Blocks, eventually resulting in denial-of-service (via application crash). - CVE-2015-8504 Lian Yihan of Qihoo 360 Inc. discovered that the VNC display driver support is vulnerable to an arithmetic exception flaw that could lead to denial-of-service (via application crash). - CVE-2015-8558 Qinghao Tang of Qihoo 360 Inc. discovered that the USB EHCI emulation support contains a flaw that could lead to an infinite loop during communication between the host controller and a device driver. This could lead to denial-of-service (via resource exhaustion). - CVE-2015-8743 Ling Liu of Qihoo 360 Inc. discovered that the NE2000 emulator is vulnerable to an out-of-bound read/write access issue, potentially resulting in information leak or memory corruption. - CVE-2016-1568 Qinghao Tang of Qihoo 360 Inc. discovered that the IDE AHCI emulation support is vulnerable to a use-after-free issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1714 Donghai Zhu of Alibaba discovered that the Firmware Configuration emulation support is vulnerable to an out-of-bound read/write access issue, that could lead to denial-of-service (via application crash) or arbitrary code execution. - CVE-2016-1922 Ling Liu of Qihoo 360 Inc. discovered that 32-bit Windows guests support is vulnerable to a NULL pointer dereference issue, that could lead to denial-of-service (via application crash). last seen 2020-06-01 modified 2020-06-02 plugin id 88628 published 2016-02-09 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88628 title Debian DSA-3469-1 : qemu - security update NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2015-2694.NASL description Updated qemu-kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU last seen 2020-06-01 modified 2020-06-02 plugin id 87604 published 2015-12-29 reporter This script is Copyright (C) 2015-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87604 title CentOS 6 : qemu-kvm (CESA-2015:2694) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0010-1.NASL description This update for kvm fixes the following issues : Security issues fixed : - CVE-2015-7512: The receive packet size is now checked in the emulated pcnet driver, eliminating buffer overflow and potential security issue by malicious guest systems. (bsc#957162) - CVE-2015-8345: A infinite loop in processing command block list was fixed that could be exploit by malicious guest systems (bsc#956829). Other bugs fixed : - To assist users past the migration incompatibility discussed in bsc#950590 (restore migration compatibility with SLE11 SP3 and SLE12, at the unfortunate expense to prior SLE11 SP4 kvm release compatability when a virtio-net device is used), print a message which references the support document TID 7017048. See https://www.suse.com/support/kb/doc.php?id=7017048 - Fix cases of wrong clock values in kvmclock timekeeping (bsc#947164 and bsc#953187) - Enforce pxe rom sizes to ensure migration compatibility. (bsc#950590) - Fix kvm live migration fails between sles11 sp3 and sp4 (bsc#950590) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 87857 published 2016-01-12 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87857 title SUSE SLED11 / SLES11 Security Update : kvm (SUSE-SU-2016:0010-1) NASL family Fedora Local Security Checks NASL id FEDORA_2015-2773B85B49.NASL description - Fix SSE4 emulation with accel=tcg (bz #1270703) * CVE-2015-8345: Fix infinite loop in eepro100 (bz #1285214) * CVE-2015-7504: Fix heap overflow in pcnet (bz #1286543) * CVE-2015-7512: Fix buffer overflow in pcnet (bz #1286549) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-03-04 plugin id 89181 published 2016-03-04 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89181 title Fedora 23 : qemu-2.4.1-2.fc23 (2015-2773b85b49) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-2696.NASL description Updated qemu-kvm-rhev packages that fix two security issues are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU last seen 2020-06-01 modified 2020-06-02 plugin id 87664 published 2015-12-30 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87664 title RHEL 6 : qemu-kvm-rhev (RHSA-2015:2696) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1318-1.NASL description xen was updated to fix 46 security issues. These security issues were fixed : - CVE-2013-4527: Buffer overflow in hw/timer/hpet.c might have allowed remote attackers to execute arbitrary code via vectors related to the number of timers (bsc#964746). - CVE-2013-4529: Buffer overflow in hw/pci/pcie_aer.c allowed remote attackers to cause a denial of service and possibly execute arbitrary code via a large log_num value in a savevm image (bsc#964929). - CVE-2013-4530: Buffer overflow in hw/ssi/pl022.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted tx_fifo_head and rx_fifo_head values in a savevm image (bsc#964950). - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#964644). - CVE-2013-4534: Buffer overflow in hw/intc/openpic.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via vectors related to IRQDest elements (bsc#964452). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#962642). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#962335). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#962758). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#964925). - CVE-2014-3640: The sosendto function in slirp/udp.c allowed local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access of an uninitialized socket (bsc#965112). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#962611). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#962627). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-01 modified 2020-06-02 plugin id 91249 published 2016-05-19 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91249 title SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:1318-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0459-1.NASL description This update fixes the following security issues : - Enforce receive packet size, thus eliminating buffer overflow and potential security issue. (bsc#957162 CVE-2015-7512) - Infinite loop in processing command block list. CVE-2015-8345 (bsc#956829) : This update also fixes a non-security bug : - Due to space restrictions in limited bios data areas, don last seen 2020-06-01 modified 2020-06-02 plugin id 88803 published 2016-02-17 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88803 title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:0459-1) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1170.NASL description This update for xen fixes the following issues : These security issues were fixed : - CVE-2016-7092: The get_page_from_l3e function in arch/x86/mm.c in Xen allowed local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables (bsc#995785) - CVE-2016-7093: Xen allowed local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation (bsc#995789) - CVE-2016-7094: Buffer overflow in Xen allowed local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update (bsc#995792) - CVE-2016-6836: VMWARE VMXNET3 NIC device support was leaging information leakage. A privileged user inside guest could have used this to leak host memory bytes to a guest (boo#994761) - CVE-2016-6888: Integer overflow in packet initialisation in VMXNET3 device driver. A privileged user inside guest could have used this flaw to crash the Qemu instance resulting in DoS (bsc#994772) - CVE-2016-6833: Use-after-free issue in the VMWARE VMXNET3 NIC device support. A privileged user inside guest could have used this issue to crash the Qemu instance resulting in DoS (boo#994775) - CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994625) - CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994421) - CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries (bsc#988675) - CVE-2016-6259: Xen did not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allowed local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check (bsc#988676) - CVE-2016-5403: The virtqueue_pop function in hw/virtio/virtio.c in QEMU allowed local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion (boo#990923) - CVE-2016-6351: The esp_do_dma function in hw/scsi/esp.c, when built with ESP/NCR53C9x controller emulation support, allowed local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the host via vectors involving DMA read into ESP command buffer (bsc#990843) - CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries (bsc#988675) - CVE-2016-6259: Xen did not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allowed local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check (bsc#988676) - CVE-2016-5337: The megasas_ctrl_get_info function in hw/scsi/megasas.c in QEMU allowed local guest OS administrators to obtain sensitive host memory information via vectors related to reading device control information (bsc#983973) - CVE-2016-5338: The (1) esp_reg_read and (2) esp_reg_write functions in hw/scsi/esp.c in QEMU allowed local guest OS administrators to cause a denial of service (QEMU process crash) or execute arbitrary code on the QEMU host via vectors related to the information transfer buffer (bsc#983984) - CVE-2016-5238: The get_cmd function in hw/scsi/esp.c in QEMU allowed local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors related to reading from the information transfer buffer in non-DMA mode (bsc#982960) - CVE-2016-4453: The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU allowed local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a VGA command (bsc#982225) - CVE-2016-4454: The vmsvga_fifo_read_raw function in hw/display/vmware_vga.c in QEMU allowed local guest OS administrators to obtain sensitive host memory information or cause a denial of service (QEMU process crash) by changing FIFO registers and issuing a VGA command, which triggers an out-of-bounds read (bsc#982224) - CVE-2016-5126: Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allowed local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call (bsc#982286) - CVE-2016-5105: The megasas_dcmd_cfg_read function in hw/scsi/megasas.c in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, used an uninitialized variable, which allowed local guest administrators to read host memory via vectors involving a MegaRAID Firmware Interface (MFI) command (bsc#982024) - CVE-2016-5106: The megasas_dcmd_set_properties function in hw/scsi/megasas.c in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allowed local guest administrators to cause a denial of service (out-of-bounds write access) via vectors involving a MegaRAID Firmware Interface (MFI) command (bsc#982025) - CVE-2016-5107: The megasas_lookup_frame function in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allowed local guest OS administrators to cause a denial of service (out-of-bounds read and crash) via unspecified vectors (bsc#982026) - CVE-2016-4963: The libxl device-handling allowed local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore (bsc#979670) - CVE-2016-4962: The libxl device-handling allowed local OS guest administrators to cause a denial of service (resource consumption or management facility confusion) or gain host OS privileges by manipulating information in guest controlled areas of xenstore (bsc#979620) - CVE-2016-4952: Out-of-bounds access issue in pvsci_ring_init_msg/data routines (bsc#981276) - CVE-2016-3710: The VGA module improperly performed bounds checking on banked access to video memory, which allowed local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the last seen 2020-06-05 modified 2016-10-12 plugin id 94000 published 2016-10-12 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/94000 title openSUSE Security Update : xen (openSUSE-2016-1170) (Bunker Buster) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-413.NASL description xen was updated to fix 26 security issues. These security issues were fixed : - CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load function in hw/arm/pxa2xx.c allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted s->rx_level value in a savevm image (bsc#864655). - CVE-2013-4537: The ssi_sd_transfer function in hw/sd/ssi-sd.c allowed remote attackers to execute arbitrary code via a crafted arglen value in a savevm image (bsc#864391). - CVE-2013-4538: Multiple buffer overflows in the ssd0323_load function in hw/display/ssd0323.c allowed remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via crafted (1) cmd_len, (2) row, or (3) col values; (4) row_start and row_end values; or (5) col_star and col_end values in a savevm image (bsc#864769). - CVE-2013-4539: Multiple buffer overflows in the tsc210x_load function in hw/input/tsc210x.c might have allowed remote attackers to execute arbitrary code via a crafted (1) precision, (2) nextprecision, (3) function, or (4) nextfunction value in a savevm image (bsc#864805). - CVE-2014-0222: Integer overflow in the qcow_open function in block/qcow.c allowed remote attackers to cause a denial of service (crash) via a large L2 table in a QCOW version 1 image (bsc#877642). - CVE-2014-3689: The vmware-vga driver (hw/display/vmware_vga.c) allowed local guest users to write to qemu memory locations and gain privileges via unspecified parameters related to rectangle handling (bsc#901508). - CVE-2014-7815: The set_pixel_format function in ui/vnc.c allowed remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value (bsc#902737). - CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality had multiple interpretations of a function last seen 2020-06-05 modified 2016-04-01 plugin id 90260 published 2016-04-01 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/90260 title openSUSE Security Update : xen (openSUSE-2016-413) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-0021-1.NASL description This update fixes the following security issues : - Enforce receive packet size, thus eliminating buffer overflow and potential security issue. (bsc#957162 CVE-2015-7512) - Infinite loop in processing command block list. CVE-2015-8345 (bsc#956829) : Also a non-security bug fixed : - Fix cases of wrong clock values in kvmclock timekeeping (bsc#947164 and bsc#953187) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 87860 published 2016-01-12 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87860 title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:0021-1)
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References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f
- http://rhn.redhat.com/errata/RHSA-2015-2694.html
- http://rhn.redhat.com/errata/RHSA-2015-2694.html
- http://rhn.redhat.com/errata/RHSA-2015-2695.html
- http://rhn.redhat.com/errata/RHSA-2015-2695.html
- http://rhn.redhat.com/errata/RHSA-2015-2696.html
- http://rhn.redhat.com/errata/RHSA-2015-2696.html
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3471
- http://www.debian.org/security/2016/dsa-3471
- http://www.openwall.com/lists/oss-security/2015/11/30/3
- http://www.openwall.com/lists/oss-security/2015/11/30/3
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.securityfocus.com/bid/78230
- http://www.securityfocus.com/bid/78230
- http://www.securitytracker.com/id/1034527
- http://www.securitytracker.com/id/1034527
- https://security.gentoo.org/glsa/201602-01
- https://security.gentoo.org/glsa/201602-01