GnuTLS up to 2.12.18/3.0.16 TLS Record Parser cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in GnuTLS up to 2.12.18/3.0.16. It has been classified as critical. This issue affects some unknown processing of the component TLS Record Parser. The manipulation leads to cryptographic issue. This vulnerability is uniquely identified as CVE-2012-1573. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in GnuTLS up to 2.12.18/3.0.16 (Network Encryption Software). It has been rated as critical. This issue affects an unknown code block of the component TLS Record Parser. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

gnutls_cipher.c in libgnutls in GnuTLS before 2.12.17 and 3.x before 3.0.15 does not properly handle data encrypted with a block cipher, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) via a crafted record, as demonstrated by a crafted GenericBlockCipher structure.

The weakness was disclosed 03/19/2012 by Matthew Hall (mhall) with Mu Dynamics as confirmed blog post (Website). The advisory is shared at blog.mudynamics.com. The identification of this vulnerability is CVE-2012-1573 since 03/12/2012. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

A public exploit has been developed by Matthew Hall (mhall). It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 80629 (Oracle Solaris Third-Party Patch Update : gnutls (cve_2012_1573_denial_of)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Solaris Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350688 (Amazon Linux Security Advisory for gnutls: ALAS-2012-059).

Upgrading to version 2.12.18 or 3.0.16 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12819.

The vulnerability is also documented in the databases at X-Force (74167), Tenable (80629), OSVDB (80259†), Secunia (SA48488†) and SecurityTracker (ID 1026828†). The entries VDB-4876 and VDB-59644 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Matthew Hall (mhall)

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 80629
Nessus Name: Oracle Solaris Third-Party Patch Update : gnutls (cve_2012_1573_denial_of)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 71244
OpenVAS Name: Debian Security Advisory DSA 2441-1 (gnutls26)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: GnuTLS 2.12.18/3.0.16
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/12/2012 🔍
03/19/2012 +7 days 🔍
03/19/2012 +0 days 🔍
03/21/2012 +2 days 🔍
03/21/2012 +0 days 🔍
03/22/2012 +1 days 🔍
03/26/2012 +4 days 🔍
03/26/2012 +0 days 🔍
04/02/2012 +7 days 🔍
01/19/2015 +1022 days 🔍
03/22/2021 +2254 days 🔍

Sourcesinfo

Advisory: blog.mudynamics.com
Researcher: Matthew Hall (mhall)
Organization: Mu Dynamics
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-1573 (🔍)
GCVE (CVE): GCVE-0-2012-1573
GCVE (VulDB): GCVE-100-4877

OVAL: 🔍
IAVM: 🔍

X-Force: 74167
SecurityFocus: 52667
Secunia: 48488 - GnuTLS TLS Record Handling and ASN1 Length DER Decoding Vulnerabilities, Highly Critical
OSVDB: 80259
SecurityTracker: 1026828 - GnuTLS Error in ciphertext_to_compressed() Lets Remote Users Deny Service
Vulnerability Center: 34781 - GnuTLS Before 2.12.17 and 3.x Before 3.0.15 Improper Handling of Encrypted Data Allows Remote DoS, Medium

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

Entryinfo

Created: 03/22/2012 16:06
Updated: 03/22/2021 09:27
Changes: 03/22/2012 16:06 (89), 04/10/2017 17:59 (13), 03/22/2021 09:22 (3), 03/22/2021 09:27 (1)
Complete: 🔍
Cache ID: 216:629:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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