CVE catalog

CVE-2007-4565

fetchmail: CVE-2007-4565

Severity: Medium
Published: Aug 28, 2007, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.97% · Oct 27, 2026

sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) by refusing certain warning messages that are sent over SMTP.

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	fetchmail	sid	`6.6.9-1`	fixed
Debian	fetchmail	forky	`6.6.9-1`	fixed
Debian	fetchmail	trixie	`6.4.39-1`	fixed
Debian	fetchmail	bookworm	`6.4.37-1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	fetchmail	source	sid	`6.3.8-8`	low	Not reported	[440006]
Debian	fetchmail	source	forky	`6.3.8-8`	low	Not reported	[440006]
Debian	fetchmail	source	trixie	`6.3.8-8`	low	Not reported	[440006]
Debian	fetchmail	source	bookworm	`6.3.8-8`	low	Not reported	[440006]

[Debian bug #440006]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[fetchmail]Fixed
Details (2)
- 6.4.37-1 · amd64 · bookworm
  Fixed · Fixed: 6.3.8-8
  dsa · fetchmail · debian · bookworm; dsa · fetchmail · debian · 12
- 6.4.37-1 · arm64 · bookworm
  Fixed · Fixed: 6.3.8-8
  dsa · fetchmail · debian · bookworm; dsa · fetchmail · debian · 12

[Debian 13 (Trixie)]

[fetchmail]Fixed
Source package: [fetchmail]
Details (2)
- 6.4.39-1 · amd64 · trixie
  Fixed · Fixed: 6.3.8-8
  dsa · fetchmail · debian · 13
- 6.4.39-1+b2 · arm64 · trixie
  Fixed · Fixed: 6.3.8-8
  dsa · fetchmail · debian · 13

Observed: Oct 23, 2026, 5:03:44 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]