CVE-2011-2527

The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop...

2.1 LowFix available

The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop group privileges when the -runas option is used, which allows local guest users to access restricted files on the host.

Exploit likelihood

0.44%Down 1.1 points since Feb 4, 2022

What each source reports

NVD Score used 2.1

Record: CVE-2011-2527
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-2527
Updated: 2026-11-02

EUVDEUVD-2011-2511 No score

Record: EUVD-2011-2511
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6g2j-9xh2-rw37 No score

The change_process_uid function in os-posix.c in Qemu 0.14.0 and earlier does not properly drop...

Record: GHSA-6g2j-9xh2-rw37
Updated: 2026-11-02

OSVSUSE-SU-2015:0929-1 No score

Security update for kvm

The kvm qemu vt100 emulation was affected by a problem where specific vt100 sequences could have been used by guest users to affect the host. (CVE-2012-3515 aka XSA-17).

Also a temp file race was fixed. (CVE-2012-2652)

Security Issue reference:

* CVE-2012-3515
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3515>
* CVE-2012-2652
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2652>

Record: SUSE-SU-2015:0929-1
Updated: 2026-11-02

Affected products

qemu

Affected packages

Affected packages
Package	Affected	Fixed
`qemu-kvm` Debian:6.0 From an advisory covering 2 CVEs	before 0.12.5+dfsg-5+squeeze6, plus listed versions 0.12.5+dfsg-50.12.5+dfsg-5+squeeze10.12.5+dfsg-5+squeeze20.12.5+dfsg-5+squeeze30.12.5+dfsg-5+squeeze40.12.5+dfsg-5+squeeze4~bpo50+10.12.5+dfsg-5+squeeze5	0.12.5+dfsg-5+squeeze6
`qemu-img` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-tools` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-img` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-tools` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-img` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6

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Affected packages
Package	Affected	Fixed
`qemu-kvm` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-tools` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-img` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6
`qemu-kvm-tools` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.209.el6	2:0.12.1.2-2.209.el6

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-2527 is a low vulnerability (CVSS 2.1) in Qemu, published July 25, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. Fixed in qemu-img 2:0.12.1.2-2.209.el6.

References

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