Vulnerability Details : CVE-2020-5211
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.
Vulnerability category: OverflowExecute codeGain privilege
Exploit prediction scoring system (EPSS) score for CVE-2020-5211
Probability of exploitation activity in the next 30 days: 1.20%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-5211
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
|
5.0
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L |
0.8
|
3.7
|
GitHub, Inc. |
CWE ids for CVE-2020-5211
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The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2020-5211
-
https://github.com/NetHack/NetHack/security/advisories/GHSA-r788-4jf4-r9f7
NetHack AUTOCOMPLETE configuration file option is subject to a buffer overflow · Advisory · NetHack/NetHack · GitHubThird Party Advisory
Products affected by CVE-2020-5211
- cpe:2.3:a:nethack:nethack:*:*:*:*:*:*:*:*