CVE catalog
CVE-2025-29476
UBUNTU-CVE-2025-29476
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.24% · Oct 25, 2026
Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.
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 | c-blosc2 | 13 | 2.17.1+ds-1 | fixed |
| Debian | c-blosc2 | 14 | 2.17.1+ds-1 | fixed |
| Ubuntu | c-blosc2 | 24.04 | 2.12.0+ds-1 | vulnerable |
| Ubuntu | c-blosc2 | 24.04 | 2.12.0+ds-2 | vulnerable |
| Ubuntu | c-blosc2 | 24.04 | 2.13.1+ds-1 | vulnerable |
| Ubuntu | c-blosc2 | 24.04 | 2.13.1+ds-1ubuntu1 | vulnerable |
| Ubuntu | c-blosc2 | 24.04 | 2.13.1+ds-1.1ubuntu1 | vulnerable |
| Ubuntu | c-blosc2 | 24.04 | 2.13.1+ds-1.1ubuntu2 | vulnerable |
| Ubuntu | c-blosc2 | 25.10 | 2.16.0+ds-1 | vulnerable |
| Ubuntu | c-blosc2 | 25.10 | 2.17.1+ds-1 | vulnerable |
| Ubuntu | c-blosc2 | 25.10 | 2.17.1+ds-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | c-blosc2 | deb | 13 | 2.17.1+ds-1 | Not reported | DEBIAN-CVE-2025-29476 | Not reported |
| Debian | c-blosc2 | deb | 14 | 2.17.1+ds-1 | Not reported | DEBIAN-CVE-2025-29476 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [libblosc2-4]Fixed
Source package: [c-blosc2]
Details (2)
2.17.1+ds-1· amd64 · trixieFixed · Fixed:
2.17.1+ds-1pypi · c-blosc2 · debian · 13
2.17.1+ds-1· arm64 · trixieFixed · Fixed:
2.17.1+ds-1pypi · c-blosc2 · debian · 13
- [libblosc2-dev]Fixed
Source package: [c-blosc2]
Details (2)
2.17.1+ds-1· amd64 · trixieFixed · Fixed:
2.17.1+ds-1pypi · c-blosc2 · debian · 13
2.17.1+ds-1· arm64 · trixieFixed · Fixed:
2.17.1+ds-1pypi · c-blosc2 · debian · 13
Observed: