GNU C Library up to 2.21 end_pattern denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in GNU C Library up to 2.21. Affected is the function end_pattern. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2015-20109. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU C Library up to 2.21 (Software Library). It has been rated as problematic. Affected by this issue is the function end_pattern. 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. CVE summarizes:

end_pattern (called from internal_fnmatch) in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash), as demonstrated by use of the fnmatch library function with the **(!() pattern. NOTE: this is not the same as CVE-2015-8984; also, some Linux distributions have fixed CVE-2015-8984 but have not fixed this additional fnmatch issue.

The weakness was disclosed 06/26/2023. The advisory is shared for download at sourceware.org. This vulnerability is handled as CVE-2015-20109 since 06/25/2023. There are known technical details, but no exploit is available.

Upgrading to version 2.22 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: C Library 2.22

Timelineinfo

06/25/2023 🔍
06/26/2023 +1 days 🔍
06/26/2023 +0 days 🔍
10/05/2023 +101 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: sourceware.org
Status: Confirmed

CVE: CVE-2015-20109 (🔍)
GCVE (CVE): GCVE-0-2015-20109
GCVE (VulDB): GCVE-100-232352

Entryinfo

Created: 06/26/2023 06:46
Updated: 10/05/2023 13:42
Changes: 06/26/2023 06:46 (41), 07/18/2023 14:39 (11), 10/05/2023 13:42 (1)
Complete: 🔍
Cache ID: 216::103

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