CVE catalog
CVE-2018-21232
re2c: CVE-2018-21232
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.47% · Oct 25, 2026
re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | re2c | sid | 4.6-1 | vulnerable |
| Debian | re2c | forky | 4.6-1 | vulnerable |
| Debian | re2c | trixie | 4.1-1 | vulnerable |
| Debian | re2c | bookworm | 3.0-2 | vulnerable |
| Ubuntu | re2c | 18.04 | 1.0.1-1 | vulnerable |
| Ubuntu | re2c | 20.04 | 1.2.1-1 | vulnerable |
| Ubuntu | re2c | 20.04 | 1.3-1 | vulnerable |
| Ubuntu | re2c | 20.04 | 1.3-1build1 | vulnerable |
| Ubuntu | re2c | 20.04 | 1.3-1ubuntu0.1 | vulnerable |
| Ubuntu | re2c | 22.04 | 2.0.3-1build1 | vulnerable |
| Ubuntu | re2c | 22.04 | 2.2-1 | vulnerable |
| Ubuntu | re2c | 22.04 | 3.0-1 | vulnerable |
| Ubuntu | re2c | 24.04 | 3.1-1 | vulnerable |
| Ubuntu | re2c | 24.04 | 3.1-1build1 | vulnerable |
| Ubuntu | re2c | 25.10 | 4.1-1 | vulnerable |
| Ubuntu | re2c | 25.10 | 4.3-2 | vulnerable |
| Ubuntu | re2c | 26.04 | 4.3-2 | vulnerable |
| Ubuntu | re2c | 26.04 | 4.3.1-1 | vulnerable |
| Ubuntu | re2c | 26.04 | 4.4-1 | vulnerable |
| Suse | re2c | linux enterprise module for basesystem 15 sp4 | 1.0.3-150000.3.3.1 | fixed |
| Suse | re2c | linux enterprise module for basesystem 15 sp5 | 1.0.3-150000.3.3.1 | fixed |
| Suse | re2c | manager proxy 4.2 | 1.0.3-150000.3.3.1 | fixed |
| Suse | re2c | manager server 4.2 | 1.0.3-150000.3.3.1 | fixed |
| Opensuse | re2c | leap 15.4 | 1.0.3-150000.3.3.1 | fixed |
| Opensuse | re2c | leap 15.5 | 1.0.3-150000.3.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | re2c | source | sid | (unfixed) | unimportant | Not reported | Not reported |
| Debian | re2c | source | forky | (unfixed) | unimportant | Not reported | Not reported |
| Debian | re2c | source | trixie | (unfixed) | unimportant | Not reported | Not reported |
| Debian | re2c | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
| Suse | re2c | rpm | linux enterprise module for basesystem 15 sp4 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
| Suse | re2c | rpm | linux enterprise module for basesystem 15 sp5 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
| Suse | re2c | rpm | manager proxy 4.2 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
| Suse | re2c | rpm | manager server 4.2 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
| Opensuse | re2c | rpm | leap 15.4 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
| Opensuse | re2c | rpm | leap 15.5 | 1.0.3-150000.3.3.1 | Not reported | SUSE-SU-2023:3353-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [re2c]Affected
Details (2)
3.0-2· amd64 · bookwormAffected
dsa · re2c · debian · bookworm; dsa · re2c · debian · 12
3.0-2· arm64 · bookwormAffected
dsa · re2c · debian · bookworm; dsa · re2c · debian · 12
[Debian 13 (Trixie)]
- [re2c]Affected
Details (2)
4.1-1· amd64 · trixieAffected
dsa · re2c · debian · 13
4.1-1· arm64 · trixieAffected
dsa · re2c · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_3353-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2018-21232]
- [https://osv.dev/vulnerability/SUSE-SU-2023:3353-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2018-21232]
- [https://security-tracker.debian.org/tracker/CVE-2018-21232]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]