SB2019121930 - Buffer overflow in NetHack
Published: December 19, 2019 Updated: July 28, 2020
Security Bulletin ID
SB2019121930
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2019-19905)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration files. This affects systems that have NetHack installed suid/sgid, and shared systems that allow users to upload their own configuration files.
Remediation
Install update from vendor's website.
References
- https://bugs.debian.org/947005
- https://github.com/NetHack/NetHack/commit/f001de79542b8c38b1f8e6d7eaefbbd28ab94b47
- https://github.com/NetHack/NetHack/commit/f4a840a48f4bcf11757b3d859e9d53cc9d5ef226
- https://github.com/NetHack/NetHack/security/advisories/GHSA-3cm7-rgh5-9pq5
- https://nethack.org/security/