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CVE-2011-4623

Date: September 25, 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.

Language: C

Severity Score

Related Resources (17)

http://www.ubuntu.com/usn/USN-1338-1
http://www.openwall.com/lists/oss-security/2011/12/22/2
https://bugzilla.redhat.com/show_bug.cgi?id=769822
https://access.redhat.com/security/cve/CVE-2011-4623
http://bugzilla.adiscon.com/show_bug.cgi?id=221
http://rsyslog.com/changelog-for-5-7-4-v5-beta/
http://git.adiscon.com/?p=rsyslog.git%3Ba=commit%3Bh=6bad782f154b7f838c7371bf99c13f6dc4ec4101
https://security-tracker.debian.org/tracker/CVE-2011-4623
http://rsyslog.com/changelog-for-4-6-6-v4-stable/
http://www.securityfocus.com/bid/51171
https://nvd.nist.gov/vuln/detail/CVE-2011-4623
http://secunia.com/advisories/47698
http://rsyslog.com/changelog-for-6-1-4-devel/
http://secunia.com/advisories/45848
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-4623
http://www.securitytracker.com/id?1026556
https://www.mend.io/vulnerability-database/CVE-2011-4623

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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