GnuPG up to 1.4.2.1 gpgv

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in GnuPG up to 1.4.2.1. Affected by this issue is some unknown functionality of the component gpgv. The manipulation results in an unknown weakness. This vulnerability was named CVE-2006-0455. The attack may be performed from remote. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in GnuPG up to 1.4.2.1. It has been classified as problematic. Affected is an unknown function of the component gpgv. This is going to have an impact on integrity. CVE summarizes:

gpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain cases even when the detached signature file does not carry a signature, which could cause programs that use gpgv to assume that the signature verification has succeeded. Note: this also occurs when running the equivalent command "gpg --verify".

The bug was discovered 02/15/2006. The weakness was presented 02/15/2006 by taviso with Gentoo (Website). The advisory is available at lists.gnupg.org. This vulnerability is traded as CVE-2006-0455 since 01/27/2006. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 20938 (GLSA-200602-10 : GnuPG: Incorrect signature verification), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117739 (CentOS Security Update for GnuPG (CESA-2006:0266)).

Upgrading to version 1.4.2.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gnupg.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (24744), Exploit-DB (27231), Tenable (20938), SecurityFocus (BID 16663†) and OSVDB (23221†). See VDB-2077 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unknown
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20938
Nessus Name: GLSA-200602-10 : GnuPG: Incorrect signature verification
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56285
OpenVAS Name: Debian Security Advisory DSA 978-1 (gnupg)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: GnuPG 1.4.2.2
Patch: gnupg.org

Timelineinfo

01/27/2006 🔍
02/15/2006 +19 days 🔍
02/15/2006 +0 days 🔍
02/15/2006 +0 days 🔍
02/15/2006 +0 days 🔍
02/15/2006 +0 days 🔍
02/15/2006 +0 days 🔍
02/17/2006 +1 days 🔍
02/19/2006 +2 days 🔍
02/20/2006 +1 days 🔍
02/21/2006 +1 days 🔍
02/26/2006 +5 days 🔍
02/01/2025 +6915 days 🔍

Sourcesinfo

Advisory: lists.gnupg.org
Researcher: taviso
Organization: Gentoo
Status: Confirmed

CVE: CVE-2006-0455 (🔍)
GCVE (CVE): GCVE-0-2006-0455
GCVE (VulDB): GCVE-100-2058

OVAL: 🔍

X-Force: 24744 - GnuPG gpgv improper signature verification, Low Risk
SecurityFocus: 16663 - GnuPG Detached Signature Verification Bypass Vulnerability
Secunia: 18968 - SUSE update for gpg / liby2util, Less Critical
OSVDB: 23221 - GnuPG gpgv Detached Signature Verification Failure
Vulnerability Center: 10461 - GnuPG gpgv False Signature Verification, Medium
Vupen: ADV-2006-0610

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 02/20/2006 10:59
Updated: 02/01/2025 22:34
Changes: 02/20/2006 10:59 (96), 08/09/2019 15:34 (2), 02/01/2025 22:34 (24)
Complete: 🔍
Cache ID: 216:6E6:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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