CVE catalog

CVE-2008-2420

stunnel4: CVE-2008-2420

Severity: Medium
Published: May 23, 2008, 3:32:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.36% · Oct 25, 2026

The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.

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	stunnel4	trixie	`3:5.74-2`	fixed
Debian	stunnel4	bookworm	`3:5.68-2+deb12u1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	stunnel4	source	trixie	`3:4.22-1.1`	low	Not reported	[482644]
Debian	stunnel4	source	bookworm	`3:4.22-1.1`	low	Not reported	[482644]

[Debian bug #482644]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[stunnel4]Fixed
Details (2)
- 3:5.68-2+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 3:4.22-1.1
  dsa · stunnel4 · debian · bookworm; dsa · stunnel4 · debian · 12
- 3:5.68-2+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 3:4.22-1.1
  dsa · stunnel4 · debian · bookworm; dsa · stunnel4 · debian · 12

[Debian 13 (Trixie)]

[stunnel4]Fixed
Details (2)
- 3:5.74-2 · amd64 · trixie
  Fixed · Fixed: 3:4.22-1.1
  dsa · stunnel4 · debian · 13
- 3:5.74-2 · arm64 · trixie
  Fixed · Fixed: 3:4.22-1.1
  dsa · stunnel4 · debian · 13

Observed: Oct 23, 2026, 5:04:11 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]