Denial of Service Vulnerability in GNU Bison by GNU
CVE-2020-14150

5.5MEDIUM

Key Information:

Vendor
Gnu
Status
Bison
Vendor
CVE Published:
15 June 2020

Summary

A vulnerability in GNU Bison prior to version 3.5.4 allows malicious actors to exploit a flaw that leads to application crashes. This vulnerability materializes only when Bison processes untrusted input, combined with a specific compiler or architecture that triggers the bug. The behavior observed suggests an inherent instability within Bison itself rather than in the output code generated. Users of Bison must exercise caution, especially in environments where untrusted inputs may be encountered.

References

https://lists.gnu.org/archive/html/info-gnu/2020-04/msg00...
x_refsource_MISC
https://bugs.gentoo.org/717936
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.