Libtasn1 4.4 asn1_extract_der_octet 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 labeled as critical has been found in Libtasn1 4.4. Affected is the function asn1_extract_der_octet. The manipulation results in memory corruption. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Libtasn1 4.4. Affected is the function asn1_extract_der_octet. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 04/30/2015 as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 4.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (102782). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

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 4.5

Timelineinfo

04/30/2015 🔍
05/01/2015 +1 days 🔍
03/22/2019 +1421 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

GCVE (VulDB): GCVE-100-75162
X-Force: 102782 - Libtasn1 _asn1_extract_der_octet() buffer overflow

Entryinfo

Created: 05/01/2015 14:43
Updated: 03/22/2019 17:09
Changes: 05/01/2015 14:43 (38), 03/22/2019 17:09 (3)
Complete: 🔍
Cache ID: 216::103

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

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