CVE-2023-24809

low-risk
Published 2023-02-17

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Nethack

Affected Vendors

Nethack

References (4)

Vendor Advisory https://github.com/NetHack/NetHack/security/advisories/GHSA-2cqv-5w4v-mgch
Vendor Advisory https://nethack.org/security/CVE-2023-24809.html
Vendor Advisory https://github.com/NetHack/NetHack/security/advisories/GHSA-2cqv-5w4v-mgch
Vendor Advisory https://nethack.org/security/CVE-2023-24809.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal