Description
A denial of service via unsigned underflow in libXpm's write path in libXpm before 3.5.19 could be used by local attackers to cause unbounded CPU usage and memory exhaustion.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| x.org | libXpm | < 3.5.19 | 3.5.19 |
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 | libxpm | 1:3.5.20-1 | — |
| Debian 13 | libxpm | No fix yet | — |
| Debian 12 | libxpm | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | motif | No fix yet | — |
| Ubuntu 26.04 LTS | libxpm | 1:3.5.17-1ubuntu0.26.04.2 | USN-8862-1 |
| Ubuntu 26.04 LTS | motif | No fix yet | — |
| Ubuntu 24.04 LTS | libxpm | 1:3.5.17-1ubuntu0.24.04.2 | USN-8862-1 |
| Ubuntu 24.04 LTS | motif | No fix yet | — |
| Ubuntu 22.04 LTS | libxpm | 1:3.5.12-1ubuntu0.22.04.4 | USN-8862-1 |
| Ubuntu 22.04 LTS | motif | No fix yet | — |
| Ubuntu 20.04 LTS | motif +1 | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | motif | No fix yet | — |
| Ubuntu 16.04 LTS | motif | No fix yet | — |
| Ubuntu 14.04 LTS | motif | No fix yet | — |
| Ubuntu Pro 18.04 LTS | libxpm | No fix yet | — |
| Ubuntu Pro 16.04 LTS | libxpm | No fix yet | — |
| Ubuntu Pro 14.04 LTS | libxpm | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | libXpm +1 | 3.5.19-4.hum1 | RHSA-2026:47072 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libXpm | 3.5.12-150000.3.13.1 | SUSE-SU-2026:4763-1 |
| SLES 12 SP5 | libXpm | 3.5.11-6.13.1 | SUSE-SU-2026:4761-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | libXpm | 3.5.17-160000.4.1 | SUSE-SU-2026:24204-1 |
| SLES 16.0 | libXpm | 3.5.17-160000.4.1 | SUSE-SU-2026:24204-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libXpm | 3.5.18-3.1 | openSUSE-SU-2026:11896-1 |
| openSUSE Leap 16.0 | libXpm | 3.5.17-160000.4.1 | openSUSE-SU-2026:22056-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libxpm | 3.5.20-r0 | — |
Advisories 7
- SUSE-SU-2026:24204-1 Security update for libXpm SUSE / openSUSE Security Updates · Oct 21, 2026
- SUSE-SU-2026:4761-1 Security update for libXpm SUSE / openSUSE Security Updates · Oct 21, 2026
- SUSE-SU-2026:4763-1 Security update for libXpm SUSE / openSUSE Security Updates · Oct 21, 2026
- openSUSE-SU-2026:22056-1 Security update for libXpm SUSE / openSUSE Security Updates · Oct 19, 2026
- USN-8862-1 libxpm vulnerability Ubuntu Security Notices (USN) · Oct 2, 2026
- openSUSE-SU-2026:11896-1 libXpm-devel-3.5.18-3.1 on GA media SUSE / openSUSE Security Updates · Sep 29, 2026
- RHSA-2026:47072 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Sep 29, 2026