CVE-2011-1155

The writeState function in logrotate.c in logrotate 3.7.9 and earlier might allow context-dependent attackers to cause a denial of service (rotation outage) via a (1) \n (newline) or (2) \ (backslash) character in a log filename, as demonstrated by a filename that is automatically constructed on the basis of a hostname or virtual machine name.

Published: 2011-03-30 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-1155 is rated Low Risk (18.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.39%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

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-2011-1155

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 2026-06-15 0.10% 0.39% +0.29%
2 2023-03-07 1.55% 0.10% -1.45%
3 2022-02-04 — 1.55% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1155

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 2.9 [email protected]

Weakness enumeration for CVE-2011-1155

OS Trackers for CVE-2011-1155

vendor priority summary link
debian not yet assigned CVE-2011-1155 not yet assigned priority: Debian including 1 source packages (logrotate), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-1155
gentoo high CVE-2011-1155: 1 GLSA(s) (201206-36), 1 atom(s) (app-admin/logrotate); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-1155
redhat low — https://access.redhat.com/security/cve/CVE-2011-1155
suse low — https://www.suse.com/security/cve/CVE-2011-1155/
ubuntu medium CVE-2011-1155 medium priority: Ubuntu including 1 source packages (logrotate), 7 status rows across 7 suites (dapper, hardy, karmic, lucid, maverick, natty, upstream): released 4, ignored 2, needs-triage 1. https://ubuntu.com/security/CVE-2011-1155

Affected software / configurations for CVE-2011-1155

Vendor Product Version Raw CPE
gentoo logrotate <= 3.7.9 cpe:2.3:a:gentoo:logrotate:*:*:*:*:*:*:*:*
gentoo logrotate 3.3 cpe:2.3:a:gentoo:logrotate:3.3:r2:*:*:*:*:*:*
gentoo logrotate 3.5.9 cpe:2.3:a:gentoo:logrotate:3.5.9:*:*:*:*:*:*:*
gentoo logrotate 3.5.9 cpe:2.3:a:gentoo:logrotate:3.5.9:r1:*:*:*:*:*:*
gentoo logrotate 3.6.5 cpe:2.3:a:gentoo:logrotate:3.6.5:*:*:*:*:*:*:*
gentoo logrotate 3.6.5 cpe:2.3:a:gentoo:logrotate:3.6.5:r1:*:*:*:*:*:*
gentoo logrotate 3.7 cpe:2.3:a:gentoo:logrotate:3.7:*:*:*:*:*:*:*
gentoo logrotate 3.7.1 cpe:2.3:a:gentoo:logrotate:3.7.1:*:*:*:*:*:*:*
gentoo logrotate 3.7.1 cpe:2.3:a:gentoo:logrotate:3.7.1:r1:*:*:*:*:*:*
gentoo logrotate 3.7.1 cpe:2.3:a:gentoo:logrotate:3.7.1:r2:*:*:*:*:*:*
gentoo logrotate 3.7.2 cpe:2.3:a:gentoo:logrotate:3.7.2:*:*:*:*:*:*:*
gentoo logrotate 3.7.6 cpe:2.3:a:gentoo:logrotate:3.7.6:*:*:*:*:*:*:*
gentoo logrotate 3.7.7 cpe:2.3:a:gentoo:logrotate:3.7.7:*:*:*:*:*:*:*
gentoo logrotate 3.7.8 cpe:2.3:a:gentoo:logrotate:3.7.8:*:*:*:*:*:*:*

References for CVE-2011-1155

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057845.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056992.html Patch
http://openwall.com/lists/oss-security/2011/03/04/16 Patch
http://openwall.com/lists/oss-security/2011/03/04/17
http://openwall.com/lists/oss-security/2011/03/04/18
http://openwall.com/lists/oss-security/2011/03/04/19
http://openwall.com/lists/oss-security/2011/03/04/22
http://openwall.com/lists/oss-security/2011/03/04/24
http://openwall.com/lists/oss-security/2011/03/04/25
http://openwall.com/lists/oss-security/2011/03/04/26
http://openwall.com/lists/oss-security/2011/03/04/27
http://openwall.com/lists/oss-security/2011/03/04/28
http://openwall.com/lists/oss-security/2011/03/04/29
http://openwall.com/lists/oss-security/2011/03/04/30
http://openwall.com/lists/oss-security/2011/03/04/31
http://openwall.com/lists/oss-security/2011/03/04/32
http://openwall.com/lists/oss-security/2011/03/04/33
http://openwall.com/lists/oss-security/2011/03/05/4
http://openwall.com/lists/oss-security/2011/03/05/6
http://openwall.com/lists/oss-security/2011/03/05/8
http://openwall.com/lists/oss-security/2011/03/06/3
http://openwall.com/lists/oss-security/2011/03/06/4
http://openwall.com/lists/oss-security/2011/03/06/5
http://openwall.com/lists/oss-security/2011/03/06/6
http://openwall.com/lists/oss-security/2011/03/07/11
http://openwall.com/lists/oss-security/2011/03/07/5
http://openwall.com/lists/oss-security/2011/03/07/6
http://openwall.com/lists/oss-security/2011/03/08/5
http://openwall.com/lists/oss-security/2011/03/10/2
http://openwall.com/lists/oss-security/2011/03/10/3
http://openwall.com/lists/oss-security/2011/03/10/6
http://openwall.com/lists/oss-security/2011/03/10/7
http://openwall.com/lists/oss-security/2011/03/11/3
http://openwall.com/lists/oss-security/2011/03/11/5
http://openwall.com/lists/oss-security/2011/03/14/26 Patch
http://openwall.com/lists/oss-security/2011/03/23/11
http://secunia.com/advisories/43955
http://www.mandriva.com/security/advisories?name=MDVSA-2011:065
http://www.redhat.com/support/errata/RHSA-2011-0407.html
http://www.vupen.com/english/advisories/2011/0791 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0872
http://www.vupen.com/english/advisories/2011/0961
https://bugzilla.redhat.com/show_bug.cgi?id=680797 Patch
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