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Vulnerability record · CVE-2019-9169 · published 26 February 2019

CVE-2019-9169: Gnu glibc out-of-bounds read vulnerability

Gnu · Glibc

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

9.8 CVSS 3.1 Critical EPSS 4.7% · top 8.4% CWE-125 · Out-of-bounds read
9.8CVSS 3.1 base score, v2 7.5
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
22References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/107160 Broken Link
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34140 ExploitMailing ListVendor Advisory
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34142 ExploitMailing ListVendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10278 Third Party Advisory
https://security.gentoo.org/glsa/202006-04 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190315-0002/ PatchThird Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24114 Issue TrackingPatchThird Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commit%3Bh=583dd860d5b833037175247230a328f0050dbfe9
https://support.f5.com/csp/article/K54823184 Third Party Advisory
https://usn.ubuntu.com/4416-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable
http://www.securityfocus.com/bid/107160 Broken Link
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34140 ExploitMailing ListVendor Advisory
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34142 ExploitMailing ListVendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10278 Third Party Advisory
https://security.gentoo.org/glsa/202006-04 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190315-0002/ PatchThird Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=24114 Issue TrackingPatchThird Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commit%3Bh=583dd860d5b833037175247230a328f0050dbfe9
https://support.f5.com/csp/article/K54823184 Third Party Advisory
https://usn.ubuntu.com/4416-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable

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Source: NIST National Vulnerability Database (record CVE-2019-9169), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.