Bug 1800720 (CVE-2020-5211) - CVE-2020-5211 nethack: AUTOCOMPLETE configuration file option is subject to a buffer overflow
Summary: CVE-2020-5211 nethack: AUTOCOMPLETE configuration file option is subject to a...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-5211
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1800721 1800722
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-02-07 19:59 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-02-07 20:11 UTC (History)
3 users (show)

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Last Closed: 2020-02-07 20:09:34 UTC

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Description Guilherme de Almeida Suckevicz 2020-02-07 19:59:10 UTC 
In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5.

Reference:
https://github.com/NetHack/NetHack/security/advisories/GHSA-r788-4jf4-r9f7
Comment 1 Guilherme de Almeida Suckevicz 2020-02-07 19:59:28 UTC 
Created nethack tracking bugs for this issue:

Affects: epel-8 [bug 1800721]
Affects: fedora-all [bug 1800722]
Comment 2 Ron Olson 2020-02-07 20:09:23 UTC 
3.6.5 fixes all these and has already been pushed to stable for F30 and F31, and is still in testing for EPEL8

https://bodhi.fedoraproject.org/updates/FEDORA-2020-517b2845a1 F31
https://bodhi.fedoraproject.org/updates/FEDORA-2020-659277b3b8 F30
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-b1d1e3e81d EPEL8
Comment 3 Product Security DevOps Team 2020-02-07 20:09:34 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Comment 4 Ron Olson 2020-02-07 20:11:20 UTC 
3.6.5 fixes all these and has already been pushed to stable for F30 and F31, and is still in testing for EPEL8

https://bodhi.fedoraproject.org/updates/FEDORA-2020-517b2845a1 F31
https://bodhi.fedoraproject.org/updates/FEDORA-2020-659277b3b8 F30
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-b1d1e3e81d EPEL8
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