Description
The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27, when invoked with GLOB_TILDE, could skip freeing allocated memory when processing the ~ operator with a long user name, potentially leading to a denial of service (memory leak).
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 | 2.25-3 | — |
| Debian 13 | glibc | 2.25-3 | — |
| Debian 12 | glibc | 2.25-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | eglibc | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | glibc | 2.22-62.3.4 | SUSE-SU-2018:0074-1 |
| SLES 12 SP2 | glibc | 2.22-62.3.4 | SUSE-SU-2018:0074-1 |
| SLES 12 SP1 | glibc | 2.19-40.16.950 | SUSE-SU-2018:2185-1 |
| SLES 12 | glibc | 2.19-22.27.958 | SUSE-SU-2018:2187-1 |
| SLES 11 SP4 | glibc | 2.11.3-17.110.24.2 | SUSE-SU-2018:4067-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | glibc | 2.11.3-17.110.24.2 | SUSE-SU-2018:4067-1 |
| SLES for SAP 12 SP3 | glibc | 2.22-62.3.4 | SUSE-SU-2018:0074-1 |
| SLES for SAP 12 SP2 | glibc | 2.22-62.3.4 | SUSE-SU-2018:0074-1 |
| SLES for SAP 12 SP1 | glibc | 2.19-40.16.950 | SUSE-SU-2018:2185-1 |
| SLES for SAP 11 SP4 | glibc | 2.11.3-17.110.24.2 | SUSE-SU-2018:4067-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | glibc | 2.11.3-17.110.24.2 | SUSE-SU-2018:4067-1 |
Advisories 5
- WID-SEC-2026-2751 IBM InfoSphere Guardium: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- SUSE-SU-2018:2185-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2187-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0074-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:4067-1 Recommended update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026