Vulnerability Details : 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.
Products affected by CVE-2011-2527
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.8.2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.8.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.8.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.9.1-5:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.5:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.4:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.3:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.10.6:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0-rc0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0-rc2:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0-rc1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.13.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.15.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.11.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.5:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.4:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.14.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.15.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.13.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.13.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.14.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.14.1:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.3:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.14.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:0.12.2:*:*:*:*:*:*:*
Threat overview for CVE-2011-2527
Top countries where our scanners detected CVE-2011-2527
Top open port discovered on systems with this issue
21
IPs affected by CVE-2011-2527 1
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-2527
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-2527
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST |
CWE ids for CVE-2011-2527
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-2527
-
https://bugs.launchpad.net/qemu/+bug/807893
Bug #807893 “qemu privilege escalation” : Bugs : QEMU
-
http://www.securityfocus.com/bid/48659
QEMU '-runas' Argument Local Security Bypass Vulnerability
-
http://www.openwall.com/lists/oss-security/2011/07/12/5
oss-security - CVE Request: qemu -runas does not clear supplementary groups
-
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html
[SECURITY] Fedora 15 Update: qemu-0.14.0-9.fc15
-
https://www.debian.org/security/2011/dsa-2282
Debian -- Security Information -- DSA-2282-1 qemu-kvm
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/68539
Qemu -runas privilege escalation CVE-2011-2527 Vulnerability Report
-
http://ubuntu.com/usn/usn-1177-1
USN-1177-1: QEMU vulnerability | Ubuntu security notices
-
http://www.openwall.com/lists/oss-security/2011/07/12/15
oss-security - Re: CVE Request: qemu -runas does not clear supplementary groups
-
http://rhn.redhat.com/errata/RHSA-2011-1531.html
RHSA-2011:1531 - Security Advisory - Red Hat Customer Portal
-
http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html
openSUSE-SU-2012:0207-1: moderate: kvm: fixing initgroups bug and e1000
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