CVE-2020-14150 describes a denial-of-service vulnerability in GNU Bison versions prior to 3.5.4. This flaw could lead to an application crash if Bison processes untrusted input, particularly when specific compiler/architecture combinations are in use. Rated as Medium severity (CVSS 5.5), it requires local access and low privileges, with the primary impact being high availability loss. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.5.4CPE matchmatch criteria | cpe:2.3:a:gnu:bison:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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GNU Bison before 3.5.4 allows attackers to cause a denial of service (application crash). NOTE: there is a risk only if Bison is used with untrusted input, and an observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug reports were intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
Jun 9, 2020bison: allows attackers to cause a denial of service
Apr 5, 2020