CVE catalog

CVE-2009-0050

lasso: CVE-2009-0050

Severity: Medium
Published: Jan 7, 2009, 6:30:15 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.34% · Oct 25, 2026

Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

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	lasso	sid	`2.9.0-5`	fixed
Debian	lasso	forky	`2.9.0-5`	fixed
Debian	lasso	trixie	`2.8.2-9+deb13u1`	fixed
Debian	lasso	trixie-security	`2.8.2-9+deb13u1`	fixed
Debian	lasso	bookworm	`2.8.1-1+deb12u1`	fixed
Debian	lasso	bookworm-security	`2.8.1-1+deb12u1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	lasso	source	sid	`2.2.1-2`	not yet assigned	Not reported	[511262]
Debian	lasso	source	forky	`2.2.1-2`	not yet assigned	Not reported	[511262]
Debian	lasso	source	trixie	`2.2.1-2`	not yet assigned	Not reported	[511262]
Debian	lasso	source	bookworm	`2.2.1-2`	not yet assigned	Not reported	[511262]

[Debian bug #511262]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[liblasso3]Unknown
Source package: [lasso]
Details (4)
- 2.8.1-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
[liblasso3-dev]Unknown
Source package: [lasso]
Details (4)
- 2.8.1-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
[liblasso-perl]Unknown
Source package: [lasso]
Details (4)
- 2.8.1-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
[python3-lasso]Unknown
Source package: [lasso]
Details (4)
- 2.8.1-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12
- 2.8.1-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · bookworm; dsa · lasso · debian · 12

[Debian 13 (Trixie)]

[liblasso3-dev]Unknown
Source package: [lasso]
Details (4)
- 2.8.2-9+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
[liblasso3t64]Unknown
Source package: [lasso]
Details (4)
- 2.8.2-9+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
[liblasso-perl]Unknown
Source package: [lasso]
Details (4)
- 2.8.2-9+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
[python3-lasso]Unknown
Source package: [lasso]
Details (4)
- 2.8.2-9+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13
- 2.8.2-9+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.2.1-2
  dsa · lasso · debian · 13

Observed: Oct 23, 2026, 5:04:27 PM UTC

References

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