Description
The pop_fail_stack function in the GNU C Library (aka glibc or libc6) allows context-dependent attackers to cause a denial of service (assertion failure and application crash) via vectors related to extended regular expression processing.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glibc | 2.28-1 | — |
| Debian 13 | glibc | 2.28-1 | — |
| Debian 12 | glibc | 2.28-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | glibc | No fix yet | — |
| Ubuntu Pro 16.04 LTS | glibc | No fix yet | — |
| Ubuntu Pro 14.04 LTS | eglibc | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES 15 SP1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES 15 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES 12 SP5 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-1 |
| SLES 12 SP4 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-2 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES for SAP 15 SP1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES for SAP 15 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLES for SAP 12 SP5 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-1 |
| SLES for SAP 12 SP4 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-2 |
| SLE Real Time 15 SP2 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLE Micro 5.0 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLE HPC 15 SP2 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLE HPC 15 SP1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SLE HPC 15 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SUSE OpenStack Cloud Crowbar 9 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-2 |
| SUSE OpenStack Cloud 9 | glibc | 2.22-114.22.1 | SUSE-SU-2022:3942-2 |
| SUSE Manager Server 4.1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SUSE Manager Retail Branch Server 4.1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SUSE Manager Proxy 4.1 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SUSE Enterprise Storage 7 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
| SUSE Enterprise Storage 6 | glibc | 2.26-13.65.1 | SUSE-SU-2022:0832-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | nscd +199 | 2.26-62.amzn2 | ALAS2-2022-1869 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | metis +1 | No fix yet | — |
Advisories 5
- SUSE-SU-2022:3942-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0832-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-2008 GNU libc: mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2025
- SUSE-SU-2022:3942-2 Security update for glibc SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2022-1869 Moderate: glibc security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 8, 2022
References
- [oss-security] 20170214 Re: Pending CVE requests for glibc mailing-list
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=779392
- 76916 vdb-entry
- GLSA-201908-06 vendor-advisory