Input validation error in QEMU - CVE-2016-7157
Published: December 10, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU39983
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-7157
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a local privileged user to perform a denial of service (DoS) attack.
The (1) mptsas_config_manufacturing_1 and (2) mptsas_config_ioc_0 functions in hw/scsi/mptconfig.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via vectors involving MPTSAS_CONFIG_PACK.
How to mitigate CVE-2016-7157
Install update from vendor's website.
Sources
- http://git.qemu.org/?p=qemu.git;a=commit;h=65a8e1f6413a0f6f79894da710b5d6d43361d27d
- http://www.openwall.com/lists/oss-security/2016/09/06/4
- http://www.openwall.com/lists/oss-security/2016/09/07/3
- http://www.securityfocus.com/bid/92775
- https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg04295.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg04296.html
- https://security.gentoo.org/glsa/201609-01