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    CVE-2011-1951

    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.

    Published:Jul 11, 2011
    Last Modified:Apr 11, 2025
    EPS:Jul 11, 2011
    EPSS Score:0.01548
    CVSS Score:4.3

    Affected Products

    Vendor
    Oneidentity
    Product
    Syslog-ng
    Vendor
    Pcre
    Product
    Pcre

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2020-8019 (CVSS 7.7) — A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of syslog-ng of SUSE Linux Enterprise …
    CVE-2011-0343 (CVSS 6.9) — Balabit syslog-ng 2.0, 3.0, 3.1, 3.2 OSE and PE, when running on FreeBSD or HP-UX, does not properly perform c…
    CVE-2008-5110 (CVSS 9.3) — syslog-ng does not call chdir when it calls chroot, which might allow attackers to escape the intended jail. N…
    CVE-2002-1200 (CVSS 7.5) — Balabit Syslog-NG 1.4.x before 1.4.15, and 1.5.x before 1.5.20, when using template filenames or output, does …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High