GNU C Library up to 2.32 ISO-2022-JP-3 Encoding denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in GNU C Library up to 2.32. This impacts an unknown function of the component ISO-2022-JP-3 Encoding Handler. Such manipulation leads to denial of service. This vulnerability is listed as CVE-2021-3326. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in GNU C Library up to 2.32 (Software Library). It has been rated as problematic. Affected by this issue is an unknown functionality of the component ISO-2022-JP-3 Encoding Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was presented 01/28/2021. The advisory is shared for download at sourceware.org. This vulnerability is handled as CVE-2021-3326. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at sourceware.org.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: sourceware.org

Timelineinfo

01/27/2021 🔍
01/28/2021 +1 days 🔍
01/28/2021 +0 days 🔍
06/09/2025 +1593 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: sourceware.org
Status: Confirmed

CVE: CVE-2021-3326 (🔍)
GCVE (CVE): GCVE-0-2021-3326
GCVE (VulDB): GCVE-100-168848

Entryinfo

Created: 01/28/2021 08:48
Updated: 06/09/2025 21:32
Changes: 01/28/2021 08:48 (39), 02/21/2021 07:40 (2), 02/21/2021 07:47 (18), 06/09/2025 21:32 (21)
Complete: 🔍
Cache ID: 216::103

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