Description
Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote attackers to have unspecified impact via vectors related to error path.
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 | 2.24-15 | — |
| Debian 13 | glibc | 2.24-15 | — |
| Debian 12 | glibc | 2.24-15 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | glibc | 2.27-3ubuntu1.2 | USN-4416-1 |
| Ubuntu 16.04 LTS | glibc | 2.23-0ubuntu11.2 | USN-4416-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| 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 | 2.22-62.10.1 | SUSE-SU-2018:0655-1 |
| SLES 12 SP2 | glibc | 2.22-62.10.1 | SUSE-SU-2018:0655-1 |
| SLES 11 SP4 | glibc | 2.11.3-17.110.9.2 | SUSE-SU-2018:0874-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | glibc | 2.22-62.10.1 | SUSE-SU-2018:0655-1 |
| SLES for SAP 12 SP2 | glibc | 2.22-62.10.1 | SUSE-SU-2018:0655-1 |
| SLES for SAP 11 SP4 | glibc | 2.11.3-17.110.9.2 | SUSE-SU-2018:0874-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.34-1.2 | openSUSE-SU-2024:10792-1 |
Advisories 4
- USN-4416-1 glibc vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- openSUSE-SU-2024:10792-1 glibc-2.34-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0655-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0874-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026