CVE-2011-1548

The default configuration of logrotate on Debian GNU/Linux uses root privileges to process files in directories that permit non-root write access, which allows local users to conduct symlink and hard link attacks by leveraging logrotate's lack of support for untrusted directories, as demonstrated by /var/log/postgresql/.

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-2011-1548 is rated Low Risk (36.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.39%). 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-2011-1548

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 0.06% 0.39% +0.33%
2 2025-03-17 0.04% 0.06% +0.02%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1548

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 2.0 MEDIUM
AV:L/AC:M/Au:N/C:N/I:C/A:C 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:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.4 9.2 [email protected]

Weakness enumeration for CVE-2011-1548

OS Trackers for CVE-2011-1548

vendor priority summary link
debian not yet assigned CVE-2011-1548 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-2011-1548
ubuntu medium CVE-2011-1548 medium priority: Ubuntu including 1 source packages (logrotate), 7 status rows across 7 suites (dapper, hardy, karmic, lucid, maverick, natty, upstream): not-affected 3, ignored 2, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2011-1548

Affected software / configurations for CVE-2011-1548

Vendor Product Version Raw CPE
gentoo logrotate — cpe:2.3:a:gentoo:logrotate:*:*:*:*:*:*:*:*

References for CVE-2011-1548

URL Tags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606544
http://openwall.com/lists/oss-security/2011/03/04/16
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
http://openwall.com/lists/oss-security/2011/03/23/11
http://www.securityfocus.com/bid/47167
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