Vulnerability CVE-2020-24980
Published: 2020-09-04

Description:
An assertion failure was found in src/parse-gram.c in GNU bison 3.7.1.1-cb7dc-dirty. A local attacker may execute bison with crafted input file containing character '\' at the end and while still in a character or a string.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
GNU -> Bison 

 References:
https://github.com/akimd/bison/commit/b801b7b670872b8a31d11b3683b4afc3e45a07f8
https://lists.gnu.org/r/bug-bison/2020-08/msg00009.html
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