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    CVE-2023-6246

    A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.

    Published:Jan 30, 2024
    Last Modified:May 12, 2026
    EPS:Jan 31, 2024
    EPSS Score:0.25481
    CVSS Score:8.4

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Gnu
    Product
    Glibc
    Vendor
    Redhat
    Product
    Enterprise Linux

    Common Attack Pattern Enumeration and Classification (CAPEC)

    Related CVEs

    References

    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