The bzip2 crate before 0.4.4 for Rust allow attackers to cause a denial of service via a…
Priority HIGH 66CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-190 and the CVSS impact.
Summary
The bzip2 crate before 0.4.4 for Rust allow attackers to cause a denial of service via a large file that triggers an integer overflow in mem.rs. NOTE: this is unrelated to the https://crates.io/crates/bzip2-rs product.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01247 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed bzip2 (crates.io): 0.4.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | bzip2 (crates.io) | before 0.4.4 | 0.4.4 | Patch available | GHSA-96jv-r488-c2rj |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- bzip2 (crates.io) Vendor— Affected before 0.4.4 Fixed in 0.4.4 Patch available GHSA-96jv-r488-c2rj
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bzip2_project:bzip2:*:*:*:*:*:rust:*:* | before 0.4.4 | Vulnerable | Bzip2 Project |
- cpe:2.3:a:bzip2_project:bzip2:*:*:*:*:*:rust:*:* Versions before 0.4.4 Vulnerable ·Bzip2 Project
Remediation
- Fix · GHSA-96jv-r488-c2rj bzip2 (crates.io) Fixed in 0.4.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-22895
- 2026-10-03 Alias added: GHSA-96jv-r488-c2rj
References
Advisory 4
Other 6
- https://github.com/alexcrichton/bzip2-rs/commit/90c9c182cd5a5ebc75810aebd89b347a7bdf590b
- https://github.com/alexcrichton/bzip2-rs
- https://lists.fedoraproject.org/archives/list/[email protected]/message/MI5SVRSGKBWB2JGDLDVIFY5ZQVDZP6I7
- https://lists.fedoraproject.org/archives/list/[email protected]/message/SQK57GGXJX3AH7KF6S7S3N7JC5QOYUQ7
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UUK2JO25PPA6XBREKJRBLRCD22LKIOLO
- https://rustsec.org/advisories/RUSTSEC-2023-0004.html
Sources
- CVE-2023-22895 · CVE Program
- CVE-2023-22895 · NVD
- FIRST EPSS
- GHSA-96jv-r488-c2rj · GitHub Advisory Database · CC BY 4.0
- CVE-2023-22895 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences