Vulnerability Details : CVE-2011-4623
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.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2011-4623
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-4623
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST |
CWE ids for CVE-2011-4623
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Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4623
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http://www.ubuntu.com/usn/USN-1338-1
USN-1338-1: Rsyslog vulnerability | Ubuntu security noticesPatch;Vendor Advisory
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http://rsyslog.com/changelog-for-5-7-4-v5-beta/
rsyslog/ChangeLog at master · rsyslog/rsyslog · GitHub
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http://bugzilla.adiscon.com/show_bug.cgi?id=221
401 Unauthorized
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https://bugzilla.redhat.com/show_bug.cgi?id=769822
769822 – (CVE-2011-4623) CVE-2011-4623 rsyslog: DoS due integer signedness error while extending rsyslog counted string buffer
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http://rsyslog.com/changelog-for-4-6-6-v4-stable/
rsyslog/ChangeLog at master · rsyslog/rsyslog · GitHub
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http://rsyslog.com/changelog-for-6-1-4-devel/
rsyslog/ChangeLog at master · rsyslog/rsyslog · GitHub
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http://www.openwall.com/lists/oss-security/2011/12/22/2
oss-security - Re: CVE Request -- rsyslog -- DoS due integer signedness error while extending rsyslog counted string buffer
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http://www.securitytracker.com/id?1026556
rsyslog imfile Integer Signedness Error Lets Local Users Deny Service - SecurityTracker
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http://www.securityfocus.com/bid/51171
RSyslog Function Imfile Module Buffer Overflow Vulnerability
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http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
Products affected by CVE-2011-4623
- cpe:2.3:a:rsyslog:rsyslog:4.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.7.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.7:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:4.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:5.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:6.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:6.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:6.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:rsyslog:rsyslog:6.1.0:*:*:*:*:*:*:*