GnuPG up to 1.4.3/1.9.20 parse-packet.c numeric error

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in GnuPG up to 1.4.3/1.9.20. This issue affects some unknown processing of the file parse-packet.c. Such manipulation leads to numeric error. This vulnerability is documented as CVE-2006-3082. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GnuPG up to 1.4.3/1.9.20 and classified as critical. Affected by this issue is an unknown code block of the file parse-packet.c. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. CVE summarizes:

parse-packet.c in GnuPG (gpg) 1.4.3 and 1.9.20, and earlier versions, allows remote attackers to cause a denial of service (gpg crash) and possibly overwrite memory via a message packet with a large length (long user ID string), which could lead to an integer overflow, as demonstrated using the --no-armor option.

The bug was discovered 06/09/2006. The weakness was released 06/23/2006 by Evgeny Legerov as confirmed mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2006-3082 since 06/19/2006. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22065 (CentOS 3 / 4 : gnupg (CESA-2006:0571)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115405 (GnuPG Parse_User_ID Remote Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cvs.gnupg.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (27245), Exploit-DB (28077), Tenable (22065), SecurityFocus (BID 18554†) and OSVDB (26770†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22065
Nessus Name: CentOS 3 / 4 : gnupg (CESA-2006:0571)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57084
OpenVAS Name: Debian Security Advisory DSA 1107-1 (gnupg)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: cvs.gnupg.org

Timelineinfo

06/09/2006 🔍
06/19/2006 +10 days 🔍
06/19/2006 +0 days 🔍
06/19/2006 +0 days 🔍
06/20/2006 +1 days 🔍
06/23/2006 +3 days 🔍
06/23/2006 +0 days 🔍
06/27/2006 +3 days 🔍
06/27/2006 +0 days 🔍
07/10/2006 +13 days 🔍
07/18/2006 +8 days 🔍
07/19/2006 +1 days 🔍
08/21/2006 +33 days 🔍
06/21/2025 +6879 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Evgeny Legerov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-3082 (🔍)
GCVE (CVE): GCVE-0-2006-3082
GCVE (VulDB): GCVE-100-2336

OVAL: 🔍

X-Force: 27245 - GnuPG parse-packet.c buffer overflow, High Risk
SecurityFocus: 18554 - GnuPG Parse_User_ID Remote Buffer Overflow Vulnerability
Secunia: 21585 - Avaya Products GnuPG Denial of Service Vulnerability, Moderately Critical
OSVDB: 26770 - GnuPG parse-packet.c Large Packet Length DoS
SecurityTracker: 1016519
Vulnerability Center: 12063 - GnuPG 1.4.3, 1.9.20 Remote DoS and Memory Overwrite, High
Vupen: ADV-2006-2450

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

Entryinfo

Created: 06/27/2006 10:54
Updated: 06/21/2025 22:09
Changes: 06/27/2006 10:54 (100), 08/09/2019 15:33 (1), 01/19/2025 16:16 (19), 06/21/2025 22:09 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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