UBUNTU-CVE-2009-5155

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    UBUNTU-CVE-2009-5155

    Published: 26 Feb 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2009-5155
    Aliases:
    USN-4954-1

    Summary:

    Details: In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.

    References: https://ubuntu.com/security/CVE-2009-5155, https://ubuntu.com/security/notices/USN-4954-1, https://www.cve.org/CVERecord?id=CVE-2009-5155

    Affected packages

    Package

    Name: eglibc

    Purl: pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.17-93ubuntu4

    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