Vulnerability Monitor

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CVE-2011-2527

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.

Security Impact Summary

CVE-2011-2527 is a security vulnerability that . Impacting 1 product from qemu organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2012-06-21T15:55:09.863

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 2.1 (LOW)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 0.14.0	Yes
Application	qemu	qemu	0.1.0	Yes
Application	qemu	qemu	0.1.1	Yes
Application	qemu	qemu	0.1.2	Yes
Application	qemu	qemu	0.1.3	Yes
Application	qemu	qemu	0.1.4	Yes
Application	qemu	qemu	0.1.5	Yes
Application	qemu	qemu	0.1.6	Yes
Application	qemu	qemu	0.2.0	Yes
Application	qemu	qemu	0.3.0	Yes
Application	qemu	qemu	0.4.0	Yes
Application	qemu	qemu	0.4.1	Yes
Application	qemu	qemu	0.4.2	Yes
Application	qemu	qemu	0.4.3	Yes
Application	qemu	qemu	0.6.0	Yes
Application	qemu	qemu	0.6.1	Yes
Application	qemu	qemu	0.7.0	Yes
Application	qemu	qemu	0.7.1	Yes
Application	qemu	qemu	0.7.2	Yes
Application	qemu	qemu	0.8.0	Yes
Application	qemu	qemu	0.8.1	Yes
Application	qemu	qemu	0.8.2	Yes
Application	qemu	qemu	0.9.0	Yes
Application	qemu	qemu	0.9.1	Yes
Application	qemu	qemu	0.9.1-5	Yes
Application	qemu	qemu	0.10.0	Yes
Application	qemu	qemu	0.10.1	Yes
Application	qemu	qemu	0.10.2	Yes
Application	qemu	qemu	0.10.3	Yes
Application	qemu	qemu	0.10.4	Yes
Application	qemu	qemu	0.10.5	Yes
Application	qemu	qemu	0.10.6	Yes
Application	qemu	qemu	0.11.0	Yes
Application	qemu	qemu	0.11.0	Yes
Application	qemu	qemu	0.11.0	Yes
Application	qemu	qemu	0.11.0	Yes
Application	qemu	qemu	0.11.0-rc0	Yes
Application	qemu	qemu	0.11.0-rc1	Yes
Application	qemu	qemu	0.11.0-rc2	Yes
Application	qemu	qemu	0.11.1	Yes
Application	qemu	qemu	0.12.0	Yes
Application	qemu	qemu	0.12.0	Yes
Application	qemu	qemu	0.12.0	Yes
Application	qemu	qemu	0.12.1	Yes
Application	qemu	qemu	0.12.2	Yes
Application	qemu	qemu	0.12.3	Yes
Application	qemu	qemu	0.12.4	Yes
Application	qemu	qemu	0.12.5	Yes
Application	qemu	qemu	0.13.0	Yes
Application	qemu	qemu	0.13.0	Yes
Application	qemu	qemu	0.13.0	Yes
Application	qemu	qemu	0.14.0	Yes
Application	qemu	qemu	0.14.0	Yes
Application	qemu	qemu	0.14.0	Yes
Application	qemu	qemu	0.14.1	Yes
Application	qemu	qemu	0.15.0	Yes
Application	qemu	qemu	0.15.0	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html ([email protected])
http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html ([email protected])
http://rhn.redhat.com/errata/RHSA-2011-1531.html ([email protected])
http://secunia.com/advisories/45187 Vendor Advisory ([email protected])
http://secunia.com/advisories/45188 Vendor Advisory ([email protected])
http://secunia.com/advisories/45419 Vendor Advisory ([email protected])
http://secunia.com/advisories/47157 Vendor Advisory ([email protected])
http://secunia.com/advisories/47992 Vendor Advisory ([email protected])
http://ubuntu.com/usn/usn-1177-1 ([email protected])
http://www.openwall.com/lists/oss-security/2011/07/12/15 ([email protected])
http://www.openwall.com/lists/oss-security/2011/07/12/5 ([email protected])
http://www.osvdb.org/74752 ([email protected])
http://www.securityfocus.com/bid/48659 ([email protected])
https://bugs.launchpad.net/qemu/+bug/807893 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/68539 ([email protected])
https://www.debian.org/security/2011/dsa-2282 ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2011-1531.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/45187 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/45188 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/45419 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/47157 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/47992 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://ubuntu.com/usn/usn-1177-1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/07/12/15 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/07/12/5 (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/74752 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/48659 (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.launchpad.net/qemu/+bug/807893 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/68539 (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2011/dsa-2282 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For qemu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.