Buffer overflow in QEMU - CVE-2016-9103
Published: December 10, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32087
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-9103
CWE-ID: CWE-119
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 gain access to sensitive information.
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
How to mitigate CVE-2016-9103
Install update from vendor's website.
Sources
- http://git.qemu.org/?p=qemu.git;a=commit;h=eb687602853b4ae656e9236ee4222609f3a6887d
- http://www.openwall.com/lists/oss-security/2016/10/28/1
- http://www.openwall.com/lists/oss-security/2016/10/30/7
- http://www.securityfocus.com/bid/93955
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01790.html
- https://security.gentoo.org/glsa/201611-11