CVE-2011-2527

qemu: when started as root, extra groups are not dropped correctly

Severity Score

2.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función change_process_uid en os-posix.c en Qemu v0.14.0 y anteriores no "suelta" correctamente los privilegios de grupo cuando se usa la opción -runas, lo que permite acceder a archivos restringidos en el host a usuarios locales invitados.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-06-15 CVE Reserved
2011-07-25 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (18)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2011/07/12/15	Mailing List
http://www.openwall.com/lists/oss-security/2011/07/12/5	Mailing List
http://www.osvdb.org/74752	Vdb Entry
http://www.securityfocus.com/bid/48659	Vdb Entry
https://bugs.launchpad.net/qemu/+bug/807893	X_refsource_confirm
https://exchange.xforce.ibmcloud.com/vulnerabilities/68539	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html	2020-11-02
http://lists.opensuse.org/opensuse-updates/2012-02/msg00009.html	2020-11-02
http://rhn.redhat.com/errata/RHSA-2011-1531.html	2020-11-02
http://secunia.com/advisories/45187	2020-11-02
http://secunia.com/advisories/45188	2020-11-02
http://secunia.com/advisories/45419	2020-11-02
http://secunia.com/advisories/47157	2020-11-02
http://secunia.com/advisories/47992	2020-11-02
http://ubuntu.com/usn/usn-1177-1	2020-11-02
https://www.debian.org/security/2011/dsa-2282	2020-11-02
https://access.redhat.com/security/cve/CVE-2011-2527	2011-12-05
https://bugzilla.redhat.com/show_bug.cgi?id=720773	2011-12-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				<= 0.14.0 Search vendor "Qemu" for product "Qemu" and version " <= 0.14.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.0 Search vendor "Qemu" for product "Qemu" and version "0.1.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.1 Search vendor "Qemu" for product "Qemu" and version "0.1.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.2 Search vendor "Qemu" for product "Qemu" and version "0.1.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.3 Search vendor "Qemu" for product "Qemu" and version "0.1.3"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.4 Search vendor "Qemu" for product "Qemu" and version "0.1.4"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.5 Search vendor "Qemu" for product "Qemu" and version "0.1.5"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.1.6 Search vendor "Qemu" for product "Qemu" and version "0.1.6"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.2.0 Search vendor "Qemu" for product "Qemu" and version "0.2.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.3.0 Search vendor "Qemu" for product "Qemu" and version "0.3.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.4.0 Search vendor "Qemu" for product "Qemu" and version "0.4.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.4.1 Search vendor "Qemu" for product "Qemu" and version "0.4.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.4.2 Search vendor "Qemu" for product "Qemu" and version "0.4.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.4.3 Search vendor "Qemu" for product "Qemu" and version "0.4.3"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.6.0 Search vendor "Qemu" for product "Qemu" and version "0.6.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.6.1 Search vendor "Qemu" for product "Qemu" and version "0.6.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.7.0 Search vendor "Qemu" for product "Qemu" and version "0.7.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.7.1 Search vendor "Qemu" for product "Qemu" and version "0.7.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.7.2 Search vendor "Qemu" for product "Qemu" and version "0.7.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.8.0 Search vendor "Qemu" for product "Qemu" and version "0.8.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.8.1 Search vendor "Qemu" for product "Qemu" and version "0.8.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.8.2 Search vendor "Qemu" for product "Qemu" and version "0.8.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.9.0 Search vendor "Qemu" for product "Qemu" and version "0.9.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.9.1 Search vendor "Qemu" for product "Qemu" and version "0.9.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.9.1-5 Search vendor "Qemu" for product "Qemu" and version "0.9.1-5"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.0 Search vendor "Qemu" for product "Qemu" and version "0.10.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.1 Search vendor "Qemu" for product "Qemu" and version "0.10.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.2 Search vendor "Qemu" for product "Qemu" and version "0.10.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.3 Search vendor "Qemu" for product "Qemu" and version "0.10.3"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.4 Search vendor "Qemu" for product "Qemu" and version "0.10.4"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.5 Search vendor "Qemu" for product "Qemu" and version "0.10.5"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.10.6 Search vendor "Qemu" for product "Qemu" and version "0.10.6"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0 Search vendor "Qemu" for product "Qemu" and version "0.11.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0 Search vendor "Qemu" for product "Qemu" and version "0.11.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0 Search vendor "Qemu" for product "Qemu" and version "0.11.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0 Search vendor "Qemu" for product "Qemu" and version "0.11.0"		rc2		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0-rc0 Search vendor "Qemu" for product "Qemu" and version "0.11.0-rc0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0-rc1 Search vendor "Qemu" for product "Qemu" and version "0.11.0-rc1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.0-rc2 Search vendor "Qemu" for product "Qemu" and version "0.11.0-rc2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.11.1 Search vendor "Qemu" for product "Qemu" and version "0.11.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.0 Search vendor "Qemu" for product "Qemu" and version "0.12.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.0 Search vendor "Qemu" for product "Qemu" and version "0.12.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.0 Search vendor "Qemu" for product "Qemu" and version "0.12.0"		rc2		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.1 Search vendor "Qemu" for product "Qemu" and version "0.12.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.2 Search vendor "Qemu" for product "Qemu" and version "0.12.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.3 Search vendor "Qemu" for product "Qemu" and version "0.12.3"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.4 Search vendor "Qemu" for product "Qemu" and version "0.12.4"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.12.5 Search vendor "Qemu" for product "Qemu" and version "0.12.5"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.13.0 Search vendor "Qemu" for product "Qemu" and version "0.13.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.13.0 Search vendor "Qemu" for product "Qemu" and version "0.13.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.13.0 Search vendor "Qemu" for product "Qemu" and version "0.13.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.14.0 Search vendor "Qemu" for product "Qemu" and version "0.14.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.14.0 Search vendor "Qemu" for product "Qemu" and version "0.14.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.14.0 Search vendor "Qemu" for product "Qemu" and version "0.14.0"		rc2		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.14.1 Search vendor "Qemu" for product "Qemu" and version "0.14.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.15.0 Search vendor "Qemu" for product "Qemu" and version "0.15.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				0.15.0 Search vendor "Qemu" for product "Qemu" and version "0.15.0"		rc2		Affected