Nethack
CVE-2020-5253
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. This bug is patched in NetHack 3.6.0.
AnalysisAI
NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-184. NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. This bug is patched in NetHack 3.6.0. Affected products include: Nethack. Version information: version 3.6.0.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option can cause a
In NetHack before 3.6.5, detecting an unknown configuration file option can cause a buffer overflow resulting in a crash
In NetHack before 3.6.5, too long of a value for the SYMBOL configuration file option can cause a buffer overflow result
In NetHack before 3.6.5, an extremely long value for the MENUCOLOR configuration file option can cause a buffer overflow
NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration f
In NetHack before 3.6.6, some out-of-bound values for the hilite_status option can be exploited. Rated high severity (CV
In NetHack before 3.6.5, an invalid argument to the -w command line option can cause a buffer overflow resulting in a cr
In NetHack before 3.6.5, unknown options starting with -de and -i can cause a buffer overflow resulting in a crash or re
NetHack is a single player dungeon exploration game. Rated medium severity (CVSS 5.5), this vulnerability is low attack
Same weakness CWE-184 – Incomplete List of Disallowed Inputs
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External POC / Exploit Code
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