GNU libtasn1 4.3 parser_aux.c asn1_ltostr memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in GNU libtasn1 4.3. This vulnerability affects the function asn1_ltostr of the file parser_aux.c. The manipulation leads to memory corruption. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GNU libtasn1 4.3. This issue affects the function asn1_ltostr of the file parser_aux.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was published 03/30/2015 as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 4.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (101894). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libtasn1 4.4

Timelineinfo

03/30/2015 🔍
04/01/2015 +2 days 🔍
04/15/2018 +1110 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: seclists.org
Status: Confirmed

GCVE (VulDB): GCVE-100-74495
X-Force: 101894

Entryinfo

Created: 04/01/2015 10:49
Updated: 04/15/2018 09:21
Changes: 04/01/2015 10:49 (40), 04/15/2018 09:21 (1)
Complete: 🔍
Cache ID: 216:2FF:103

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