CVE-2022-32200 json
libdwarf 0.4.0 has a heap-based buffer over-read in _dwarf_check_string_valid in dwarf_util.c.
published 2022-06-01 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53408
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
libdwarf 0.4.0 has a heap-based buffer over-read in _dwarf_check_string_valid in dwarf_util.c.
Patch / fix
- dwarfutils Debian 14, Debian 13 1:0.11.1-1
debian advisories DEBIAN-CVE-2022-32200
- dwarfutils Ubuntu Pro 22.04 LTS 20210528-1ubuntu0.22.04.1~esm1
- dwarfutils Ubuntu Pro 24.04 LTS 20210528-1ubuntu0.24.04.1~esm1
ubuntu advisories UBUNTU-CVE-2022-32200
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
0.98% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/davea42/libdwarf-code/issues/116 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/davea42/libdwarf-code/commit/8151575a6ace77d005ca5bb5d71c1bfdba3f7069
patch, third-party-advisory
-
github.com
/davea42/libdwarf-code/issues/116
exploit, issue-tracking, third-party-advisory
-
prevanders.net
/dwarfbug.html
product, third-party-advisory
Sources
- CVE List CVE-2022-32200
- NVD CVE-2022-32200
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.