gnu gnutls up to 2.6.1 lib/pk-libgcrypt.c credentials management

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4.8$0-$5k0.00

A vulnerability was found in gnu gnutls up to 2.6.1 (Network Encryption Software) and classified as problematic. This issue affects an unknown functionality in the library lib/pk-libgcrypt.c. The manipulation with an unknown input leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is availability. The summary by CVE is:

lib/pk-libgcrypt.c in libgnutls in GnuTLS before 2.6.6 does not properly handle invalid DSA signatures, which allows remote attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a malformed DSA key that triggers a (1) free of an uninitialized pointer or (2) double free.

The bug was discovered 04/30/2009. The weakness was presented 04/30/2009 by Miroslav Kratochvil (Website). The advisory is shared at article.gmane.org. The identification of this vulnerability is CVE-2009-1415 since 04/24/2009. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1552 for this issue.

A public exploit has been developed by Miroslav Kratochvil in ANSI C and been published immediately after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 40661 (FreeBSD : GnuTLS -- multiple vulnerabilities (b31a1088-460f-11de-a11a-0022156e8794)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 2.6.2 eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (50257), Tenable (40661) and Exploit-DB (32964). See 47995 and 47994 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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: 🔍
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CVSSv2info

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Exploitinginfo

Class: Credentials management
CWE: CWE-255
ATT&CK: T1552

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Miroslav Kratochvil
Programming Language: 🔍
Download: 🔍

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Nessus ID: 40661
Nessus Name: FreeBSD : GnuTLS -- multiple vulnerabilities (b31a1088-460f-11de-a11a-0022156e8794)
Nessus File: 🔍
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OpenVAS ID: 63965
OpenVAS Name: Slackware Advisory SSA:2009-128-01 gnutls
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: gnutls 2.6.2

Timelineinfo

04/24/2009 🔍
04/30/2009 +6 days 🔍
04/30/2009 +0 days 🔍
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04/30/2009 +0 days 🔍
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04/30/2009 +0 days 🔍
04/30/2009 +0 days 🔍
05/01/2009 +1 days 🔍
05/18/2009 +17 days 🔍
08/17/2009 +91 days 🔍
08/20/2009 +3 days 🔍
03/17/2015 +2035 days 🔍
09/04/2019 +1632 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: article.gmane.org
Researcher: Miroslav Kratochvil
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-1415 (🔍)
X-Force: 50257
SecurityTracker: 1022157
Vulnerability Center: 22047 - GnuTLS < 2.6.6 lib/pk-libgcrypt.c Remote DoS and Possibly Code Execution via a Malformed DSA Key, High
SecurityFocus: 34783 - GnuTLS Prior to 2.6.6 Multiple Remote Vulnerabilities
Secunia: 34842
OSVDB: 54624 - CVE-2009-1415 - GnuTLS - Denial-of-Service Issue
Vupen: ADV-2009-1218

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

Entryinfo

Created: 03/17/2015 23:38
Updated: 09/04/2019 09:26
Changes: 03/17/2015 23:38 (92), 09/04/2019 09:26 (4)
Complete: 🔍

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