Vulnerabilities > CVE-2014-8106 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Qemu
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
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.
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 OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0096.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0096 for details. last seen 2020-06-01 modified 2020-06-02 plugin id 99977 published 2017-05-04 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99977 title OracleVM 3.2 : xen (OVMSA-2017-0096) code # # (C) Tenable Network Security, Inc. # # The package checks in this plugin were extracted from OracleVM # Security Advisory OVMSA-2017-0096. # include("compat.inc"); if (description) { script_id(99977); script_version("3.12"); script_cvs_date("Date: 2019/09/27 13:00:35"); script_cve_id("CVE-2014-8106", "CVE-2016-9603", "CVE-2017-2615", "CVE-2017-2620", "CVE-2017-7228"); script_bugtraq_id(71477); script_xref(name:"IAVB", value:"2017-B-0024"); script_name(english:"OracleVM 3.2 : xen (OVMSA-2017-0096)"); script_summary(english:"Checks the RPM output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote OracleVM host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0096 for details." ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/oraclevm-errata/2017-May/000691.html" ); script_set_attribute( attribute:"solution", value:"Update the affected xen / xen-devel / xen-tools packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools"); script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.2"); script_set_attribute(attribute:"vuln_publication_date", value:"2014/12/08"); script_set_attribute(attribute:"patch_publication_date", value:"2017/05/03"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/04"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_set_attribute(attribute:"stig_severity", value:"I"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"OracleVM Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/OracleVM/release"); if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM"); if (! preg(pattern:"^OVS" + "3\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.2", "OracleVM " + release); if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); flag = 0; if (rpm_check(release:"OVS3.2", reference:"xen-4.1.3-25.el5.223.62")) flag++; if (rpm_check(release:"OVS3.2", reference:"xen-devel-4.1.3-25.el5.223.62")) flag++; if (rpm_check(release:"OVS3.2", reference:"xen-tools-4.1.3-25.el5.223.62")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-tools"); }
NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2015-0867.NASL description An updated qemu-kvm package that fixes one security issue and one bug is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 83000 published 2015-04-23 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/83000 title CentOS 6 : qemu-kvm (CESA-2015:0867) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3088.NASL description Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu-kvm, a full virtualization solution on x86 hardware. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process. last seen 2020-03-17 modified 2014-12-05 plugin id 79729 published 2014-12-05 reporter This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/79729 title Debian DSA-3088-1 : qemu-kvm - security update NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2439-1.NASL description Michael S. Tsirkin discovered that QEMU incorrectly handled certain parameters during ram load while performing a migration. An attacker able to manipulate savevm data could use this issue to possibly execute arbitrary code on the host. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 14.10. (CVE-2014-7840) Paolo Bonzini discovered that QEMU incorrectly handled memory in the Cirrus VGA device. A malicious guest could possibly use this issue to write into memory of the host, leading to privilege escalation. (CVE-2014-8106). 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 80026 published 2014-12-15 reporter Ubuntu Security Notice (C) 2014-2019 Canonical, Inc. / NASL script (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/80026 title Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : qemu, qemu-kvm vulnerabilities (USN-2439-1) NASL family Misc. NASL id CITRIX_XENSERVER_CTX200892.NASL description The version of Citrix XenServer installed on the remote host is affected by multiple vulnerabilities : - A flaw exists in the VGA emulator in QEMU that allows a local guest user to read host memory by setting the display to a high resolution. (CVE-2014-3615) - A flaw exists in the set_pixel_format() function within ui/vnc.c in QEMU that allows a remote attacker, using a small bytes_per_pixel value, to cause a denial of service condition. (CVE-2014-7815) - A heap-based buffer overflow flaw exists in the Cirrus VGA emulator that allows local guest users to execute arbitrary code via vectors related to blit regions. (CVE-2014-8106) Note that environments that contain only PV guests are not vulnerable to these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 83163 published 2015-04-30 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/83163 title Citrix XenServer Multiple Vulnerabilities (CTX200892) NASL family Scientific Linux Local Security Checks NASL id SL_20150305_QEMU_KVM_ON_SL7_X.NASL description It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host last seen 2020-03-18 modified 2015-03-26 plugin id 82260 published 2015-03-26 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/82260 title Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20150305) NASL family Fedora Local Security Checks NASL id FEDORA_2015-1886.NASL description - Fix qemu_bh_schedule race condition (bz #1165315) - CVE-2014-8106: cirrus: insufficient blit region checks 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 2015-02-18 plugin id 81393 published 2015-02-18 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81393 title Fedora 20 : qemu-1.6.2-13.fc20 (2015-1886) NASL family SuSE Local Security Checks NASL id SUSE_SU-2015-0349-1.NASL description QEMU was updated to fix various bugs and security issues. Following security issues were fixed: CVE-2014-8106: Heap-based buffer overflow in the Cirrus VGA emulator (hw/display/cirrus_vga.c) in QEMU allowed local guest users to execute arbitrary code via vectors related to blit regions. - CVE-2014-7840: The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allowed remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data. Also a bug was fixed where qemu-img convert could occasionaly corrupt images. (bsc#908380) 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 83686 published 2015-05-20 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/83686 title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2015:0349-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3087.NASL description Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu, a fast processor emulator. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process. last seen 2020-03-17 modified 2014-12-05 plugin id 79728 published 2014-12-05 reporter This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/79728 title Debian DSA-3087-1 : qemu - security update NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201412-37.NASL description The remote host is affected by the vulnerability described in GLSA-201412-37 (QEMU: Multiple Vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A context-dependent attacker may be able to execute arbitrary code, cause a Denial of Service condition, obtain sensitive information, or bypass security restrictions. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 80242 published 2014-12-26 reporter This script is Copyright (C) 2014-2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/80242 title GLSA-201412-37 : QEMU: Multiple Vulnerabilities NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0349.NASL description Updated qemu-kvm packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. 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 packages provide the user-space component for running virtual machines using KVM. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 81632 published 2015-03-05 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/81632 title RHEL 7 : qemu-kvm (RHSA-2015:0349) 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 Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0624.NASL description Updated qemu-kvm-rhev packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Virtualization Hypervisor 7. 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, in environments managed by Red Hat Enterprise Virtualization Manager. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 81661 published 2015-03-06 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/81661 title RHEL 7 : qemu-kvm-rhev (RHSA-2015:0624) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0867.NASL description An updated qemu-kvm package that fixes one security issue and one bug is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 82986 published 2015-04-22 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/82986 title RHEL 6 : qemu-kvm (RHSA-2015:0867) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-0718-1.NASL description This update for xen fixes several issues. These security issues were fixed : - CVE-2016-10155: The virtual hardware watchdog last seen 2020-06-01 modified 2020-06-02 plugin id 97828 published 2017-03-20 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97828 title SUSE SLES11 Security Update : xen (SUSE-SU-2017:0718-1) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2014-249.NASL description Updated qemu packages fix security vulnerabilities : During migration, the values read from migration stream during ram load are not validated. Especially offset in host_from_stream_offset() and also the length of the writes in the callers of the said function. A user able to alter the savevm data (either on the disk or over the wire during migration) could use either of these flaws to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process (CVE-2014-7840). Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process (CVE-2014-8106). last seen 2020-06-01 modified 2020-06-02 plugin id 79994 published 2014-12-15 reporter This script is Copyright (C) 2014-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/79994 title Mandriva Linux Security Advisory : qemu (MDVSA-2014:249) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2015-0868.NASL description Updated qemu-kvm-rhev packages that fix one security issue and one bug are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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 in environments managed by Red Hat Enterprise Virtualization Manager. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 83048 published 2015-04-24 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/83048 title RHEL 6 : qemu-kvm-rhev (RHSA-2015:0868) NASL family Scientific Linux Local Security Checks NASL id SL_20150421_QEMU_KVM_ON_SL6_X.NASL description It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host last seen 2020-03-18 modified 2015-04-22 plugin id 82989 published 2015-04-22 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/82989 title Scientific Linux Security Update : qemu-kvm on SL6.x i386/x86_64 (20150421) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-0647-1.NASL description This update for xen fixes several issues. These security issues were fixed : - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025188) - CVE-2016-10155: The virtual hardware watchdog last seen 2020-06-01 modified 2020-06-02 plugin id 97657 published 2017-03-10 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97657 title SUSE SLES11 Security Update : xen (SUSE-SU-2017:0647-1) NASL family SuSE Local Security Checks NASL id SUSE_11_KVM-LIBVIRT-201412-150123.NASL description This collective update for KVM and libvirt provides fixes for security and non-security issues. kvm : - Fix NULL pointer dereference because of uninitialized UDP socket. (bsc#897654, CVE-2014-3640) - Fix performance degradation after migration. (bsc#878350) - Fix potential image corruption due to missing FIEMAP_FLAG_SYNC flag in FS_IOC_FIEMAP ioctl. (bsc#908381) - Add validate hex properties for qdev. (bsc#852397) - Add boot option to do strict boot (bsc#900084) - Add query-command-line-options QMP command. (bsc#899144) - Fix incorrect return value of migrate_cancel. (bsc#843074) - Fix insufficient parameter validation during ram load. (bsc#905097, CVE-2014-7840) - Fix insufficient blit region checks in qemu/cirrus. (bsc#907805, CVE-2014-8106) libvirt : - Fix security hole with migratable flag in dumpxml. (bsc#904176, CVE-2014-7823) - Fix domain deadlock. (bsc#899484, CVE-2014-3657) - Use correct definition when looking up disk in qemu blkiotune. (bsc#897783, CVE-2014-3633) - Fix undefined symbol when starting virtlockd. (bsc#910145) - Add last seen 2020-06-01 modified 2020-06-02 plugin id 81480 published 2015-02-24 reporter This script is Copyright (C) 2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81480 title SuSE 11.3 Security Update : kvm and libvirt (SAT Patch Number 10222) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0095.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0095 for details. last seen 2020-06-01 modified 2020-06-02 plugin id 99976 published 2017-05-04 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99976 title OracleVM 3.3 : xen (OVMSA-2017-0095) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-0582-1.NASL description This update for xen fixes several issues. These security issues were fixed : - CVE-2017-5973: A infinite loop while doing control transfer in xhci_kick_epctx allowed privileged user inside the guest to crash the host process resulting in DoS (bsc#1025188) - CVE-2016-10155: The virtual hardware watchdog last seen 2020-06-01 modified 2020-06-02 plugin id 97467 published 2017-03-01 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97467 title SUSE SLES12 Security Update : xen (SUSE-SU-2017:0582-1) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2015-061.NASL description Updated qemu packages fix multiple security vulnerabilities : Sibiao Luo discovered that QEMU incorrectly handled device hot-unplugging. A local user could possibly use this flaw to cause a denial of service (CVE-2013-4377). Michael S. Tsirkin discovered that QEMU incorrectly handled vmxnet3 devices. A local guest could possibly use this issue to cause a denial of service, or possibly execute arbitrary code on the host (CVE-2013-4544). Multiple integer overflow, input validation, logic error, and buffer overflow flaws were discovered in various QEMU block drivers. An attacker able to modify a disk image file loaded by a guest could use these flaws to crash the guest, or corrupt QEMU process memory on the host, potentially resulting in arbitrary code execution on the host with the privileges of the QEMU process (CVE-2014-0143, CVE-2014-0144, CVE-2014-0145, CVE-2014-0147). A buffer overflow flaw was found in the way the virtio_net_handle_mac() function of QEMU processed guest requests to update the table of MAC addresses. A privileged guest user could use this flaw to corrupt QEMU process memory on the host, potentially resulting in arbitrary code execution on the host with the privileges of the QEMU process (CVE-2014-0150). A divide-by-zero flaw was found in the seek_to_sector() function of the parallels block driver in QEMU. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest (CVE-2014-0142). A NULL pointer dereference flaw was found in the QCOW2 block driver in QEMU. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest (CVE-2014-0146). It was found that the block driver for Hyper-V VHDX images did not correctly calculate BAT (Block Allocation Table) entries due to a missing bounds check. An attacker able to modify a disk image file loaded by a guest could use this flaw to crash the guest (CVE-2014-0148). An out-of-bounds memory access flaw was found in the way QEMU last seen 2020-06-01 modified 2020-06-02 plugin id 81944 published 2015-03-19 reporter This script is Copyright (C) 2015-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81944 title Mandriva Linux Security Advisory : qemu (MDVSA-2015:061) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2015-0867.NASL description From Red Hat Security Advisory 2015:0867 : An updated qemu-kvm package that fixes one security issue and one bug is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM- allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 82982 published 2015-04-22 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/82982 title Oracle Linux 6 : qemu-kvm (ELSA-2015-0867) NASL family Fedora Local Security Checks NASL id FEDORA_2015-5482.NASL description - CVE-2015-1779 vnc: insufficient resource limiting in VNC websockets decoder (bz #1205051, bz #1199572) - Qemu: PRDT overflow from guest to host (bz #1204919, bz #1205322) - CVE-2014-8106: cirrus: insufficient blit region checks (bz #1170612, bz #1169454) - Fix .vdi disk corruption (bz #1199400) - Don last seen 2020-06-05 modified 2015-04-14 plugin id 82751 published 2015-04-14 reporter This script is Copyright (C) 2015-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/82751 title Fedora 21 : qemu-2.1.3-5.fc21 (2015-5482) NASL family SuSE Local Security Checks NASL id SUSE_11_KVM-LIBVIRT-201412-150124.NASL description This collective update for KVM and libvirt provides fixes for security and non-security issues. kvm : - Fix NULL pointer dereference because of uninitialized UDP socket. (bsc#897654, CVE-2014-3640) - Fix performance degradation after migration. (bsc#878350) - Fix potential image corruption due to missing FIEMAP_FLAG_SYNC flag in FS_IOC_FIEMAP ioctl. (bsc#908381) - Add validate hex properties for qdev. (bsc#852397) - Add boot option to do strict boot (bsc#900084) - Add query-command-line-options QMP command. (bsc#899144) - Fix incorrect return value of migrate_cancel. (bsc#843074) - Fix insufficient parameter validation during ram load. (bsc#905097, CVE-2014-7840) - Fix insufficient blit region checks in qemu/cirrus. (bsc#907805, CVE-2014-8106) libvirt : - Fix security hole with migratable flag in dumpxml. (bsc#904176, CVE-2014-7823) - Fix domain deadlock. (bsc#899484, CVE-2014-3657) - Use correct definition when looking up disk in qemu blkiotune. (bsc#897783, CVE-2014-3633) - Fix undefined symbol when starting virtlockd. (bsc#910145) - Add last seen 2020-06-01 modified 2020-06-02 plugin id 81481 published 2015-02-24 reporter This script is Copyright (C) 2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/81481 title SuSE 11.3 Security Update : kvm and libvirt (SAT Patch Number 10222) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2015-0349.NASL description From Red Hat Security Advisory 2015:0349 : Updated qemu-kvm packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. 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 packages provide the user-space component for running virtual machines using KVM. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 81803 published 2015-03-13 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/81803 title Oracle Linux 7 : qemu-kvm (ELSA-2015-0349) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2015-0349.NASL description Updated qemu-kvm packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. 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 packages provide the user-space component for running virtual machines using KVM. It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host last seen 2020-06-01 modified 2020-06-02 plugin id 81891 published 2015-03-18 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/81891 title CentOS 7 : qemu-kvm (CESA-2015:0349)
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References
- http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg00508.html
- http://www.securityfocus.com/bid/71477
- http://www.debian.org/security/2014/dsa-3088
- http://www.openwall.com/lists/oss-security/2014/12/04/8
- http://www.debian.org/security/2014/dsa-3087
- http://secunia.com/advisories/60364
- http://rhn.redhat.com/errata/RHSA-2015-0643.html
- http://rhn.redhat.com/errata/RHSA-2015-0349.html
- http://rhn.redhat.com/errata/RHSA-2015-0624.html
- http://rhn.redhat.com/errata/RHSA-2015-0795.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html
- http://support.citrix.com/article/CTX200892
- http://rhn.redhat.com/errata/RHSA-2015-0891.html
- http://rhn.redhat.com/errata/RHSA-2015-0868.html
- http://rhn.redhat.com/errata/RHSA-2015-0867.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99126
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bf25983345ca44aec3dd92c57142be45452bd38a
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d3532a0db02296e687711b8cdc7791924efccea0