| Name | CVE-2020-14150 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bison (PTS) | jessie | 2:3.0.2.dfsg-2 | vulnerable |
| stretch | 2:3.0.4.dfsg-1 | vulnerable |
| buster | 2:3.3.2.dfsg-1 | vulnerable |
| bullseye | 2:3.7.5+dfsg-1 | fixed |
| sid, trixie, bookworm | 2:3.8.2+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bison | source | wheezy | (unfixed) | end-of-life | | |
| bison | source | (unstable) | 2:3.6.1+dfsg-1 | unimportant | | |
Notes
https://lists.gnu.org/archive/html/info-gnu/2020-04/msg00000.html
Crash in CLI tool, no security impact