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Last updated: 2/12/2016 1:13:28 PM

CVE Publication rate: 11.33

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Vulnerability Summary for CVE-2011-4623

Original release date: 09/25/2012
Last revised: 09/26/2012


Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.1 LOW
Impact Subscore: 2.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: UBUNTU
Name: USN-1338-1
Type: Advisory; Patch Information
External Source: CONFIRM
Name: http://rsyslog.com/changelog-for-5-7-4-v5-beta/
External Source: CONFIRM
Name: http://rsyslog.com/changelog-for-6-1-4-devel/
External Source: CONFIRM
Name: http://rsyslog.com/changelog-for-4-6-6-v4-stable/
External Source: CONFIRM
Name: http://bugzilla.adiscon.com/show_bug.cgi?id=221
External Source: BID
Name: 51171
External Source: CONFIRM
Name: http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=769822
External Source: SECTRACK
Name: 1026556
External Source: MLIST
Name: [oss-security] 20111222 Re: CVE Request -- rsyslog -- DoS due integer signedness error while extending rsyslog counted string buffer

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:rsyslog:rsyslog:5.1.0
* cpe:/a:rsyslog:rsyslog:5.1.1
* cpe:/a:rsyslog:rsyslog:5.1.2
* cpe:/a:rsyslog:rsyslog:5.1.3
* cpe:/a:rsyslog:rsyslog:5.1.4
* cpe:/a:rsyslog:rsyslog:5.1.5
* cpe:/a:rsyslog:rsyslog:5.1.6
* cpe:/a:rsyslog:rsyslog:5.2.0
* cpe:/a:rsyslog:rsyslog:5.2.1
* cpe:/a:rsyslog:rsyslog:5.2.2
* cpe:/a:rsyslog:rsyslog:5.3.1
* cpe:/a:rsyslog:rsyslog:5.3.2
* cpe:/a:rsyslog:rsyslog:5.3.3
* cpe:/a:rsyslog:rsyslog:5.3.4
* cpe:/a:rsyslog:rsyslog:5.3.5
* cpe:/a:rsyslog:rsyslog:5.3.6
* cpe:/a:rsyslog:rsyslog:5.3.7
* cpe:/a:rsyslog:rsyslog:5.4.0
* cpe:/a:rsyslog:rsyslog:5.4.1
* cpe:/a:rsyslog:rsyslog:5.4.2
* cpe:/a:rsyslog:rsyslog:5.5.0
* cpe:/a:rsyslog:rsyslog:5.5.1
* cpe:/a:rsyslog:rsyslog:5.5.2
* cpe:/a:rsyslog:rsyslog:5.5.3
* cpe:/a:rsyslog:rsyslog:5.5.4
* cpe:/a:rsyslog:rsyslog:5.5.5
* cpe:/a:rsyslog:rsyslog:5.5.6
* cpe:/a:rsyslog:rsyslog:5.5.7
* cpe:/a:rsyslog:rsyslog:5.6.0
* cpe:/a:rsyslog:rsyslog:5.6.1
* cpe:/a:rsyslog:rsyslog:5.6.2
* cpe:/a:rsyslog:rsyslog:5.6.3
* cpe:/a:rsyslog:rsyslog:5.6.4
* cpe:/a:rsyslog:rsyslog:5.6.5
* cpe:/a:rsyslog:rsyslog:5.7.0
* cpe:/a:rsyslog:rsyslog:5.7.1
* cpe:/a:rsyslog:rsyslog:5.7.2
* cpe:/a:rsyslog:rsyslog:5.7.3
+ Configuration 2
+ OR
* cpe:/a:rsyslog:rsyslog:4.1.0
* cpe:/a:rsyslog:rsyslog:4.1.1
* cpe:/a:rsyslog:rsyslog:4.1.2
* cpe:/a:rsyslog:rsyslog:4.1.3
* cpe:/a:rsyslog:rsyslog:4.1.4
* cpe:/a:rsyslog:rsyslog:4.1.5
* cpe:/a:rsyslog:rsyslog:4.1.6
* cpe:/a:rsyslog:rsyslog:4.1.7
* cpe:/a:rsyslog:rsyslog:4.2.0
* cpe:/a:rsyslog:rsyslog:4.3.0
* cpe:/a:rsyslog:rsyslog:4.3.1
* cpe:/a:rsyslog:rsyslog:4.3.2
* cpe:/a:rsyslog:rsyslog:4.4.0
* cpe:/a:rsyslog:rsyslog:4.4.1
* cpe:/a:rsyslog:rsyslog:4.4.2
* cpe:/a:rsyslog:rsyslog:4.5.0
* cpe:/a:rsyslog:rsyslog:4.5.1
* cpe:/a:rsyslog:rsyslog:4.5.2
* cpe:/a:rsyslog:rsyslog:4.5.3
* cpe:/a:rsyslog:rsyslog:4.5.4
* cpe:/a:rsyslog:rsyslog:4.5.5
* cpe:/a:rsyslog:rsyslog:4.5.6
* cpe:/a:rsyslog:rsyslog:4.5.7
* cpe:/a:rsyslog:rsyslog:4.5.8
* cpe:/a:rsyslog:rsyslog:4.6.0
* cpe:/a:rsyslog:rsyslog:4.6.1
* cpe:/a:rsyslog:rsyslog:4.6.2
* cpe:/a:rsyslog:rsyslog:4.6.3
* cpe:/a:rsyslog:rsyslog:4.6.4
* cpe:/a:rsyslog:rsyslog:4.6.5
+ Configuration 3
+ OR
* cpe:/a:rsyslog:rsyslog:6.1.0
* cpe:/a:rsyslog:rsyslog:6.1.1
* cpe:/a:rsyslog:rsyslog:6.1.2
* cpe:/a:rsyslog:rsyslog:6.1.3

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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