Vulnerabilities > CVE-2017-5857 - Memory Leak vulnerability in Qemu
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-349.NASL description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-5898: The CCID Card device emulator support was vulnerable to an integer overflow flaw allowing a privileged user to crash the Qemu process on the host resulting in DoS (bsc#1023907). - CVE-2017-5857: The Virtio GPU Device emulator support was vulnerable to a host memory leakage issue allowing a guest user to leak host memory resulting in DoS (bsc#1023073). - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine cirrus_bitblt_cputovideo failed to check the memory region, allowing for an out-of-bounds write that allows for privilege escalation (bsc#1024972) - CVE-2017-2615: An error in the bitblt copy operation could have allowed a malicious guest administrator to cause an out of bounds memory access, possibly leading to information disclosure or privilege escalation (bsc#1023004) - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a memory leakage issue allowing a privileged user to leak host memory resulting in DoS (bsc#1023053) - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2016-10029: The Virtio GPU Device emulator support was vulnerable to an OOB read issue allowing a guest user to crash the Qemu process instance resulting in Dos (bsc#1017081). - CVE-2016-10028: The Virtio GPU Device emulator support was vulnerable to an out of bounds memory access issue allowing a guest user to crash the Qemu process instance on a host, resulting in DoS (bsc#1017084). - CVE-2016-10155: The virtual hardware watchdog last seen 2020-06-05 modified 2017-03-17 plugin id 97791 published 2017-03-17 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97791 title openSUSE Security Update : qemu (openSUSE-2017-349) NASL family Fedora Local Security Checks NASL id FEDORA_2017-31B976672B.NASL description - CVE-2016-7907: net: imx: infinite loop (bz #1381182) - CVE-2017-5525: audio: memory leakage in ac97 (bz #1414110) - CVE-2017-5526: audio: memory leakage in es1370 (bz #1414210) - CVE-2016-10155 watchdog: memory leakage in i6300esb (bz #1415200) - CVE-2017-5552: virtio-gpu-3d: memory leakage (bz #1415283) - CVE-2017-5578: virtio-gpu: memory leakage (bz #1415797) - CVE-2017-5667: sd: sdhci OOB access during multi block transfer (bz #1417560) - CVE-2017-5856: scsi: megasas: memory leakage (bz #1418344) - CVE-2017-5857: virtio-gpu-3d: host memory leakage in virgl_cmd_resource_unref (bz #1418383) - CVE-2017-5898: usb: integer overflow in emulated_apdu_from_guest (bz #1419700) - CVE-2017-5987: sd: infinite loop issue in multi block transfers (bz #1422001) - CVE-2017-6058: vmxnet3: OOB access when doing vlan stripping (bz #1423359) - CVE-2017-6505: usb: an infinite loop issue in ohci_service_ed_list (bz #1429434) - CVE-2017-2615: cirrus: oob access while doing bitblt copy backward (bz #1418206) - CVE-2017-2620: cirrus: potential arbitrary code execution (bz #1425419) - Fix spice GL with new mesa/libglvnd (bz #1431905) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2017-03-20 plugin id 97804 published 2017-03-20 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97804 title Fedora 25 : 2:qemu (2017-31b976672b) NASL family Fedora Local Security Checks NASL id FEDORA_2017-62AC1230F7.NASL description - CVE-2017-5525: audio: memory leakage in ac97 (bz #1414110) - CVE-2017-5526: audio: memory leakage in es1370 (bz #1414210) - CVE-2016-10155 watchdog: memory leakage in i6300esb (bz #1415200) - CVE-2017-5552: virtio-gpu-3d: memory leakage (bz #1415283) - CVE-2017-5667: sd: sdhci OOB access during multi block transfer (bz #1417560) - CVE-2017-5857: virtio-gpu-3d: host memory leakage in virgl_cmd_resource_unref (bz #1418383) - CVE-2017-5856: scsi: megasas: memory leakage (bz #1418344) - CVE-2017-5898: usb: integer overflow in emulated_apdu_from_guest (bz #1419700) - CVE-2017-5987: sd: infinite loop issue in multi block transfers (bz #1422001) - CVE-2017-6505: usb: an infinite loop issue in ohci_service_ed_list (bz #1429434) - CVE-2017-2615: cirrus: oob access while doing bitblt copy backward (bz #1418206) - CVE-2017-2620: cirrus: potential arbitrary code execution (bz #1425419) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2017-03-22 plugin id 97865 published 2017-03-22 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97865 title Fedora 24 : 2:qemu (2017-62ac1230f7) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3261-1.NASL description Zhenhao Hong discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10028, CVE-2016-10029) Li Qiang discovered that QEMU incorrectly handled the 6300esb watchdog. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-10155) Li Qiang discovered that QEMU incorrectly handled the i.MX Fast Ethernet Controller. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7907) It was discovered that QEMU incorrectly handled the JAZZ RC4030 device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8667) It was discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-8669) It was discovered that QEMU incorrectly handled the shared rings when used with Xen. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. (CVE-2016-9381) Jann Horn discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to access files on the host file system outside of the shared directory and possibly escalate their privileges. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9602) Gerd Hoffmann discovered that QEMU incorrectly handled the Cirrus VGA device when being used with a VNC connection. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2016-9603) It was discovered that QEMU incorrectly handled the ColdFire Fast Ethernet Controller. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9776) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to leak contents of host memory. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9845, CVE-2016-9908) Li Qiang discovered that QEMU incorrectly handled the Virtio GPU device. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9846, CVE-2016-9912, CVE-2017-5552, CVE-2017-5578, CVE-2017-5857) Li Qiang discovered that QEMU incorrectly handled the USB redirector. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9907) Li Qiang discovered that QEMU incorrectly handled USB EHCI emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9911) Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9913, CVE-2016-9914, CVE-2016-9915, CVE-2016-9916) Qinghao Tang, Li Qiang, and Jiangxin discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2016-9921, CVE-2016-9922) Wjjzhang and Li Qiang discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-2615) It was discovered that QEMU incorrectly handled the Cirrus VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-2620) It was discovered that QEMU incorrectly handled VNC connections. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-2633) Li Qiang discovered that QEMU incorrectly handled the ac97 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5525) Li Qiang discovered that QEMU incorrectly handled the es1370 audio device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5526) Li Qiang discovered that QEMU incorrectly handled the 16550A UART device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5579) Jiang Xin discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2017-5667) Li Qiang discovered that QEMU incorrectly handled the MegaRAID SAS device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5856) Li Qiang discovered that QEMU incorrectly handled the CCID Card device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5898) Li Qiang discovered that QEMU incorrectly handled USB xHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5973) Jiang Xin and Wjjzhang discovered that QEMU incorrectly handled SDHCI device emulation. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2017-5987) Li Qiang discovered that QEMU incorrectly handled USB OHCI controller emulation. A privileged attacker inside the guest could use this issue to cause QEMU to hang, resulting in a denial of service. (CVE-2017-6505). 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 99581 published 2017-04-21 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99581 title Ubuntu 14.04 LTS / 16.04 LTS / 16.10 : qemu vulnerabilities (USN-3261-1) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201702-28.NASL description The remote host is affected by the vulnerability described in GLSA-201702-28 (QEMU: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below for details. Impact : A local attacker could potentially execute arbitrary code with privileges of QEMU process on the host, gain privileges on the host system, cause a Denial of Service condition, or obtain sensitive information. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 97271 published 2017-02-21 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97271 title GLSA-201702-28 : QEMU: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-0625-1.NASL description This update for qemu fixes several issues. These security issues were fixed : - CVE-2017-5898: The CCID Card device emulator support was vulnerable to an integer overflow flaw allowing a privileged user to crash the Qemu process on the host resulting in DoS (bsc#1023907). - CVE-2017-5857: The Virtio GPU Device emulator support was vulnerable to a host memory leakage issue allowing a guest user to leak host memory resulting in DoS (bsc#1023073). - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine cirrus_bitblt_cputovideo failed to check the memory region, allowing for an out-of-bounds write that allows for privilege escalation (bsc#1024972) - CVE-2017-2615: An error in the bitblt copy operation could have allowed a malicious guest administrator to cause an out of bounds memory access, possibly leading to information disclosure or privilege escalation (bsc#1023004) - CVE-2017-5856: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a memory leakage issue allowing a privileged user to leak host memory resulting in DoS (bsc#1023053) - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1014702) - CVE-2016-10029: The Virtio GPU Device emulator support was vulnerable to an OOB read issue allowing a guest user to crash the Qemu process instance resulting in Dos (bsc#1017081). - CVE-2016-10028: The Virtio GPU Device emulator support was vulnerable to an out of bounds memory access issue allowing a guest user to crash the Qemu process instance on a host, resulting in DoS (bsc#1017084). - CVE-2016-10155: The virtual hardware watchdog last seen 2020-06-01 modified 2020-06-02 plugin id 97599 published 2017-03-08 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/97599 title SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2017:0625-1)
References
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
- http://www.openwall.com/lists/oss-security/2017/02/01/21
- http://www.openwall.com/lists/oss-security/2017/02/01/21
- http://www.openwall.com/lists/oss-security/2017/02/02/16
- http://www.openwall.com/lists/oss-security/2017/02/02/16
- http://www.securityfocus.com/bid/95993
- http://www.securityfocus.com/bid/95993
- https://bugzilla.redhat.com/show_bug.cgi?id=1418382
- https://bugzilla.redhat.com/show_bug.cgi?id=1418382
- https://security.gentoo.org/glsa/201702-28
- https://security.gentoo.org/glsa/201702-28