TI-2004-00132 Aliases CVE-2004-0156 GHSA-q5x9-4p6f-q4m6

Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp before…

LOW 29Published 2004-04-17 · Updated 2024-08-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Format string vulnerabilities in the (1) die or (2) log_event functions for ssmtp before 2.50.6 allow remote mail relays to cause a denial of service and possibly execute arbitrary code.

Why it matters now

EPSS 0.03504 89th 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:ssmtp:ssmtp::::::::	up to 2.49	Vulnerable	Ssmtp

cpe:2.3:a:ssmtp:ssmtp:*:*:*:*:*:*:*:* Versions up to 2.49 Vulnerable ·Ssmtp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2004-0156
2026-10-03 Alias added: GHSA-q5x9-4p6f-q4m6

References

Patch 2

Other 3

TI-2008-03801 The from_format function in ssmtp.c in ssmtp 2.61 and 2.62, in certain configurations… CVSS 2.0LOW 2.6
TI-2004-00387 The log_event function in ssmtp 2.50.6 and earlier allows local users to overwrite… CVSS 2.0LOW 2.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences