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    CVE-2023-24809

    NetHack is a single player dungeon exploration game. Starting with version 3.6.2 and prior to version 3.6.7, illegal input to the "C" (call) command can cause a buffer overflow and crash the NetHack process. This vulnerability may be a security issue for systems that have NetHack installed suid/sgid and for shared systems. For all systems, it may result in a process crash. This issue is resolved in NetHack 3.6.7. There are no known workarounds.

    Published:Feb 17, 2023
    Last Modified:Mar 10, 2025
    EPS:Feb 17, 2023
    EPSS Score:0.00045
    CVSS Score:5.5

    Affected Products

    Vendor
    Nethack
    Product
    Nethack

    Exploits

    No exploit reference

    Related CVEs

    CVE-2020-5254 (CVSS 3.9) — In NetHack before 3.6.6, some out-of-bound values for the hilite_status option can be exploited. NetHack 3.6.6…
    CVE-2020-5253 (CVSS 3.9) — NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usuall…
    CVE-2020-5211 (CVSS 5) — In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option c…
    CVE-2020-5212 (CVSS 5) — In NetHack before 3.6.5, an extremely long value for the MENUCOLOR configuration file option can cause a buffe…
    CVE-2020-5213 (CVSS 5) — In NetHack before 3.6.5, too long of a value for the SYMBOL configuration file option can cause a buffer overf…
    CVE-2020-5214 (CVSS 5) — In NetHack before 3.6.5, detecting an unknown configuration file option can cause a buffer overflow resulting …
    CVE-2020-5209 (CVSS 5) — In NetHack before 3.6.5, unknown options starting with -de and -i can cause a buffer overflow resulting in a c…
    CVE-2020-5210 (CVSS 5) — In NetHack before 3.6.5, an invalid argument to the -w command line option can cause a buffer overflow resulti…
    CVE-2019-19905 (CVSS 9.8) — NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from confi…
    CVE-2003-0358 (CVSS 4.6) — Buffer overflow in (1) nethack 3.4.0 and earlier, and (2) falconseye 1.9.3 and earlier, which is based on neth…

    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