Description
In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.
Published: 2019-02-26
Score: 7.5 High
EPSS: 1.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2009-5109 In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.
Ubuntu USN Ubuntu USN USN-4954-1 GNU C Library vulnerabilities
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.01102}

epss

{'score': 0.01374}


Subscriptions

Gnu Glibc
Netapp Cloud Backup Ontap Select Deploy Administration Utility Steelstore Cloud Integrated Storage
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T07:32:23.298Z

Reserved: 2019-02-25T00:00:00.000Z

Link: CVE-2009-5155

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-02-26T02:29:00.277

Modified: 2024-11-21T01:11:17.400

Link: CVE-2009-5155

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-03-20T00:00:00Z

Links: CVE-2009-5155 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses