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CVE-2011-1951

Date: July 11, 2011

lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.

Language: C

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2011-1951
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html
http://secunia.com/advisories/45122
http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff
http://www.openwall.com/lists/oss-security/2011/05/26/1
http://www.securityfocus.com/bid/47800
https://security-tracker.debian.org/tracker/CVE-2011-1951
https://bugzilla.redhat.com/show_bug.cgi?id=709088
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-1951
https://www.mend.io/vulnerability-database/CVE-2011-1951

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
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): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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