Description
libXcursor before 1.1.15 has various integer overflows that could lead to heap buffer overflows when processing malicious cursors, e.g., with programs like GIMP. It is also possible that an attack vector exists against the related code in cursor/xcursor.c in Wayland through 1.14.0.
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 | libxcursor | 1:1.1.14-3.1 | — |
| Debian 14 | wayland | 1.14.0-2 | — |
| Debian 13 | libxcursor | 1:1.1.14-3.1 | — |
| Debian 13 | wayland | 1.14.0-2 | — |
| Debian 12 | libxcursor | 1:1.1.14-3.1 | — |
| Debian 12 | wayland | 1.14.0-2 | — |
| Debian 9 | libxcursor | 1:1.1.14-1+deb9u1 | DSA-4059-1 |
| Debian 8 | libxcursor | 1:1.1.14-1+deb8u1 | DSA-4059-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | libxcursor | 1:1.1.13-1+deb7u2 | DLA-1201-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libxcursor | 1:1.1.14-1ubuntu0.16.04.1 | USN-3501-1 |
| Ubuntu 16.04 LTS | wayland | 1.12.0-1~ubuntu16.04.3 | USN-3622-1 |
| Ubuntu 14.04 LTS | libxcursor | 1:1.1.14-1ubuntu0.14.04.1 | USN-3501-1 |
| Ubuntu 14.04 LTS | wayland | 1.4.0-1ubuntu1.1 | USN-3622-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | libXcursor | 1.1.14-4.3.1 | SUSE-SU-2017:3214-1 |
| SLES 12 SP2 | libXcursor | 1.1.14-4.3.1 | SUSE-SU-2017:3214-1 |
| SLES 11 SP4 | xorg-x11-libs | 7.4-8.26.50.5.3 | SUSE-SU-2018:0246-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | libXcursor | 1.1.14-4.3.1 | SUSE-SU-2017:3214-1 |
| SLES for SAP 12 SP2 | libXcursor | 1.1.14-4.3.1 | SUSE-SU-2017:3214-1 |
| SLES for SAP 11 SP4 | xorg-x11-libs | 7.4-8.26.50.5.3 | SUSE-SU-2018:0246-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libXcursor | 1.2.0-1.9 | openSUSE-SU-2024:10919-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.23 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.22 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.21 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.20 | libxcursor | 1.1.15-r0 | — |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.18 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.17 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.16 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.15 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.14 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.13 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.12 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.11 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.10 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.9 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.8 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.7 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.6 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.5 | libxcursor | 1.1.15-r0 | — |
| Alpine v3.4 | libxcursor | 1.1.15-r0 | — |
Advisories 7
- USN-3622-1 wayland vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3501-1 libxcursor vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4059-1 libxcursor - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1201-1 libxcursor - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2017:3214-1 Security update for libXcursor SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10919-1 libXcursor-devel-1.2.0-1.9 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0246-1 Security update for xorg-x11-libs SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://cgit.freedesktop.org/xorg/lib/libXcursor/commit/?id=4794b5dd34688158fb51a2943032569d3780c4b8
- USN-3622-1 vendor-advisory
- [oss-security] 20171128 CVE-2017-16612 libXcursor: heap overflows when parsing malicious files mailing-list
- https://bugzilla.suse.com/show_bug.cgi?id=1065386
- GLSA-201801-04 vendor-advisory
- https://lists.freedesktop.org/archives/wayland-devel/2017-November/035979.html
- USN-3501-1 vendor-advisory
- [debian-lts-announce] 20171210 [SECURITY] [DLA 1201-1] libxcursor security update mailing-list
- https://cgit.freedesktop.org/wayland/wayland/commit/?id=5d201df72f3d4f4cb8b8f75f980169b03507da38
- [freedesktop-xorg-announce] 20171128 libXcursor 1.1.15 mailing-list
- http://security.cucumberlinux.com/security/details.php?id=156
- DSA-4059 vendor-advisory