librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it…
Priority LOW 31CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers to modify transmitted data via a birthday attack.
Why it matters now
EPSS 0.02939 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:librsync_project:librsync:*:*:*:*:*:*:*:* | before 1.0.0 | Vulnerable | Librsync Project |
- cpe:2.3:a:librsync_project:librsync:*:*:*:*:*:*:*:* Versions before 1.0.0 Vulnerable ·Librsync Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2014-8242
- 2026-10-03 Alias added: GHSA-v3pp-49w5-gwmv
References
Patch 2
Advisory 10
- FEDORA-2015-3366
- openSUSE-SU-2015:1752
- [oss-security] 20140805 [CVE Requests] rsync and librsync collisions
- FEDORA-2015-3497
- [oss-security] 20140728 rsync vulnerable to collisions
- GLSA-201605-04
- [oss-security] 20141012 Re: [CVE Requests] rsync and librsync collisions
- https://www.miknet.net/security/optimizing-birthday-attack/
- FEDORA-2015-2923
- https://bugzilla.redhat.com/show_bug.cgi?id=1126712
Sources
- CVE-2014-8242 · CVE Program
- CVE-2014-8242 · NVD
- FIRST EPSS
- GHSA-v3pp-49w5-gwmv · GitHub Advisory Database · CC BY 4.0
- CVE-2014-8242 · 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