SB2016121004 - Buffer overflow in QEMU
Published: December 10, 2016 Updated: July 28, 2020
Security Bulletin ID
SB2016121004
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2016-9103)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
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.
Remediation
Install update from vendor's website.
References
- 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