Race condition in signal handling of procmail 3.20 and earlier, when running setuid…
Priority LOW 28Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Race condition in signal handling of procmail 3.20 and earlier, when running setuid, allows local users to cause a denial of service or gain root privileges by sending a signal while a signal handling routine is already running.
Why it matters now
EPSS 0.00322 25th percentileScored 2026-11-07
Fix Fixed 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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Linux 5.2 | Fixed | RHSA-2001:093 |
| Red Hat Linux 6.2 | Fixed | RHSA-2001:093 |
| Red Hat Linux 7.0 | Fixed | RHSA-2001:093 |
| Red Hat Linux 7.1 | Fixed | RHSA-2001:093 |
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0905
- 2026-10-03 Alias added: GHSA-gjq2-7fjr-x6vv
References
Advisory 1
More Procmail vulnerabilities
- TI-2017-12391 Heap-based buffer overflow in the loadbuf function in formisc.c in formail in procmail… CVSS 3.0CRITICAL 9.8
- TI-2014-02939 Heap-based buffer overflow in formisc.c in formail in procmail 3.22 allows remote… CVSS 2.0HIGH 7.5
- TI-1999-00434 Buffer overflow in procmail before version 3.12 allows remote or local attackers to… CVSS 2.0HIGH 7.5
- TI-1999-00469 A race condition in how procmail handles .procmailrc files allows a local user to read… CVSS 2.0LOW 1.2
Sources
- CVE-2001-0905 · CVE Program
- CVE-2001-0905 · NVD
- FIRST EPSS
- GHSA-gjq2-7fjr-x6vv · GitHub Advisory Database · CC BY 4.0
- CVE-2001-0905 · 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