libyang up to 1.0-r2 resolve_feature_value memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in libyang up to 1.0-r2. Affected by this vulnerability is the function resolve_feature_value. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2019-20391. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in libyang up to 1.0-r2. This vulnerability affects the function resolve_feature_value. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.

The weakness was presented 01/22/2020. This vulnerability was named CVE-2019-20391 since 01/22/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 1.0-r3 eliminates this vulnerability.

See VDB-149252, VDB-149251, VDB-149250 and VDB-149249 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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: libyang 1.0-r3
Patch: github.com

Timelineinfo

01/22/2020 🔍
01/22/2020 +0 days 🔍
01/23/2020 +1 days 🔍
03/25/2024 +1523 days 🔍

Sourcesinfo

Advisory: bdb596ddc07596fa212f231135b87d0b9178f6f8
Status: Not defined

CVE: CVE-2019-20391 (🔍)
GCVE (CVE): GCVE-0-2019-20391
GCVE (VulDB): GCVE-100-149248
See also: 🔍

Entryinfo

Created: 01/23/2020 08:26
Updated: 03/25/2024 10:51
Changes: 01/23/2020 08:26 (37), 01/23/2020 08:31 (17), 03/25/2024 10:46 (20), 03/25/2024 10:51 (1)
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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