CVE-2020-24240 (GCVE-0-2020-24240)

Vulnerability from cvelistv5 – Published: 2020-08-25 13:45 – Updated: 2024-08-04 15:12
VLAI
Summary
GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2312 records in the last 180 days details
References
Show details on NVD website
To clipboard 

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