CVE-2005-2876

umount in util-linux 2.8 to 2.12q, 2.13-pre1, and 2.13-pre2, and other packages such as loop-aes-utils, allows local users with unmount permissions to gain privileges via the -r (remount) option, which causes the file system to be remounted with just the read-only flag, which effectively clears the nosuid, nodev, and other flags.

Published: 2005-09-13 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2005-2876 is rated Low Risk (32.9/100): CVSS High severity, with low exploitation likelihood (EPSS 0.05%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2005-2876

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.05% 0.05% -0.00%
2 2025-03-29 0.05% 0.05% +0.00%
3 2025-03-17 0.05%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-2876

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
3.9 10.0 [email protected]

Weakness enumeration for CVE-2005-2876

OS Trackers for CVE-2005-2876

vendor priority summary link
debian medium CVE-2005-2876 medium priority: Debian including 1 source packages (util-linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-2876
redhat medium https://access.redhat.com/security/cve/CVE-2005-2876
ubuntu medium CVE-2005-2876 medium priority: Ubuntu including 2 source packages (loop-aes-utils, util-linux), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 6, needs-triage 2. https://ubuntu.com/security/CVE-2005-2876

Affected software / configurations for CVE-2005-2876

Vendor Product Version Raw CPE
andries_brouwer util-linux 2.8.1_alpha cpe:2.3:a:andries_brouwer:util-linux:2.8.1_alpha:*:*:*:*:*:*:*
andries_brouwer util-linux 2.8_12 cpe:2.3:a:andries_brouwer:util-linux:2.8_12:*:*:*:*:*:*:*
andries_brouwer util-linux 2.9i cpe:2.3:a:andries_brouwer:util-linux:2.9i:*:*:*:*:*:*:*
andries_brouwer util-linux 2.9w cpe:2.3:a:andries_brouwer:util-linux:2.9w:*:*:*:*:*:*:*
andries_brouwer util-linux 2.10f cpe:2.3:a:andries_brouwer:util-linux:2.10f:*:*:*:*:*:*:*
andries_brouwer util-linux 2.10m cpe:2.3:a:andries_brouwer:util-linux:2.10m:*:*:*:*:*:*:*
andries_brouwer util-linux 2.10p cpe:2.3:a:andries_brouwer:util-linux:2.10p:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11f cpe:2.3:a:andries_brouwer:util-linux:2.11f:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11n cpe:2.3:a:andries_brouwer:util-linux:2.11n:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11q cpe:2.3:a:andries_brouwer:util-linux:2.11q:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11r cpe:2.3:a:andries_brouwer:util-linux:2.11r:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11w cpe:2.3:a:andries_brouwer:util-linux:2.11w:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11x cpe:2.3:a:andries_brouwer:util-linux:2.11x:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11y cpe:2.3:a:andries_brouwer:util-linux:2.11y:*:*:*:*:*:*:*
andries_brouwer util-linux 2.11z cpe:2.3:a:andries_brouwer:util-linux:2.11z:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12a cpe:2.3:a:andries_brouwer:util-linux:2.12a:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12b cpe:2.3:a:andries_brouwer:util-linux:2.12b:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12i cpe:2.3:a:andries_brouwer:util-linux:2.12i:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12j cpe:2.3:a:andries_brouwer:util-linux:2.12j:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12k cpe:2.3:a:andries_brouwer:util-linux:2.12k:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12o cpe:2.3:a:andries_brouwer:util-linux:2.12o:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12p cpe:2.3:a:andries_brouwer:util-linux:2.12p:*:*:*:*:*:*:*
andries_brouwer util-linux 2.12q cpe:2.3:a:andries_brouwer:util-linux:2.12q:*:*:*:*:*:*:*
andries_brouwer util-linux 2.13_pre1 cpe:2.3:a:andries_brouwer:util-linux:2.13_pre1:*:*:*:*:*:*:*
andries_brouwer util-linux 2.13_pre2 cpe:2.3:a:andries_brouwer:util-linux:2.13_pre2:*:*:*:*:*:*:*

References for CVE-2005-2876

URL Tags
http://marc.info/?l=bugtraq&m=112656096125857&w=2
http://marc.info/?l=bugtraq&m=112690609622266&w=2
http://secunia.com/advisories/16785
http://secunia.com/advisories/16988
http://secunia.com/advisories/17004
http://secunia.com/advisories/17027
http://secunia.com/advisories/17133
http://secunia.com/advisories/17154
http://secunia.com/advisories/18502
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101960-1
http://support.avaya.com/elmodocs2/security/ASA-2006-014.htm
http://www.debian.org/security/2005/dsa-823
http://www.debian.org/security/2005/dsa-825
http://www.novell.com/linux/security/advisories/2005_21_sr.html
http://www.osvdb.org/19369
http://www.securityfocus.com/archive/1/419774/100/0/threaded
http://www.securityfocus.com/bid/14816
http://www.ubuntu.com/usn/usn-184-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/22241
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10921
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