Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xkbcomp | Dec 5, 2025 | Aug 25, 2018 |
| Amazon Linux Ami 2 | — | Upgrade xorg-x11-server-commonUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xvfb | Jun 4, 2020 | Aug 25, 2018 |
| Centos_linux | — | Upgrade libxkbcommon-x11Upgrade xorg-x11-drv-vesa-debuginfoUpgrade libX11-debuginfoUpgrade xorg-x11-drv-ati-debuginfoUpgrade mesa-libGLwUpgrade xorg-x11-drv-atiUpgrade xorg-x11-drv-wacom-develUpgrade xorg-x11-server-develUpgrade xorg-x11-server-debuginfoUpgrade gdm-develUpgrade gdm-debuginfoUpgrade mesa-libGLw-debuginfoUpgrade libX11-commonUpgrade gdmUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-drv-wacom-debuginfoUpgrade libX11-develUpgrade xorg-x11-drv-vesaUpgrade xorg-x11-server-XorgUpgrade libxkbcommon-debuginfoUpgrade xorg-x11-server-sourceUpgrade mesa-libGLw-develUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-drv-wacomUpgrade libxkbcommonUpgrade xorg-x11-server-XvfbUpgrade libxkbcommon-x11-develUpgrade gdm-pam-extensions-develUpgrade libX11Upgrade xorg-x11-server-XnestUpgrade libxkbcommon-develUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-common | Aug 28, 2019 | Aug 25, 2018 |
| Debian | — | Upgrade libxkbcommon | Jul 30, 2024 | Aug 25, 2018 |
| Freebsd | — | Upgrade xkbcomp | Dec 10, 2025 | Dec 5, 2025 |
| Gentoo Linux | — | Upgrade x11-libs/libxkbcommon. | Oct 31, 2018 | Aug 25, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libxkbcommon-develUpgrade libxkbcommonUpgrade libxkbcommon-x11 | Dec 11, 2019 | Aug 25, 2018 |
| Oracle Solaris | — | Upgrade x11/library/libxi to version 1.7.10-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/xclock to version 1.0.9-11.4.21.0.1.69.0 on Solaris 11.4Upgrade image/editor/bitmap to version 1.0.9-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/diagnostic/x11-info-clients to version 7.7-11.4.21.0.1.69.0 on Solaris 11.4Upgrade library/graphics/pixman to version 0.38.4-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/x11-server-utilities to version 7.7-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/library/libxkbcommon to version 0.8.4-11.4.17.0.1.1.0 on Solaris 11.4Upgrade x11/session/xauth to version 1.1-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/library/libfontenc to version 1.1.4-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/session/sessreg to version 1.1.2-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/font-utilities to version 7.7-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/library/libice to version 1.0.10-11.4.21.0.1.69.0 on Solaris 11.4Upgrade library/graphics/cogl to version 1.22.4-11.4.21.0.1.69.0 on Solaris 11.4Upgrade x11/xt-resource-utilities to version 7.7-11.4.21.0.1.69.0 on Solaris 11.4 | Jan 19, 2021 | Aug 25, 2018 |
| Oracle_linux | — | Upgrade xorg-x11-drv-wacomUpgrade libxkbcommon-x11-develUpgrade xorg-x11-server-develUpgrade libX11-commonUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XvfbUpgrade libxkbcommon-x11Upgrade mesa-libGLwUpgrade xorg-x11-drv-wacom-develUpgrade xorg-x11-server-XdmxUpgrade gdmUpgrade gdm-develUpgrade xorg-x11-drv-atiUpgrade xorg-x11-server-XnestUpgrade mesa-libGLw-develUpgrade libX11-develUpgrade libxkbcommon-develUpgrade xorg-x11-server-commonUpgrade gdm-pam-extensions-develUpgrade libX11Upgrade xorg-x11-drv-vesaUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-XorgUpgrade libxkbcommonUpgrade xorg-x11-server-source | Jul 21, 2020 | Jun 26, 2017 |
| Redhat_linux | — | Upgrade gdm-debuginfoNo solution existsUpgrade xorg-x11-server-develUpgrade xorg-x11-drv-ati-debuginfoUpgrade libxkbcommon-develUpgrade xorg-x11-server-debuginfoUpgrade mesa-libGLwUpgrade libX11-commonUpgrade xorg-x11-drv-vesa-debuginfoUpgrade gdm-develUpgrade mesa-libGLw-debuginfoUpgrade libxkbcommon-x11Upgrade libX11-debuginfoUpgrade xorg-x11-drv-atiUpgrade xorg-x11-drv-wacom-develUpgrade gdmUpgrade xorg-x11-drv-vesaUpgrade xorg-x11-drv-wacom-debuginfoUpgrade xorg-x11-server-XephyrUpgrade gdm-pam-extensions-develUpgrade xorg-x11-server-XwaylandUpgrade libxkbcommon-x11-develUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-sourceUpgrade mesa-libGLw-develUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XorgUpgrade libX11-develUpgrade libX11Upgrade xorg-x11-drv-wacomUpgrade xorg-x11-server-XvfbUpgrade libxkbcommonUpgrade xorg-x11-server-XdmxUpgrade libxkbcommon-debuginfo | Aug 7, 2019 | Aug 25, 2018 |
| Suse | — | Upgrade libxkbcommon-x11-devel-32bitUpgrade libxkbcommon-x11-0-32bitUpgrade libxkbcommon0-32bitUpgrade libxkbcommon-x11-develUpgrade libxkbcommon-x11-0Upgrade libxkbcommon0Upgrade libxkbcommon-devel-32bitUpgrade libxkbcommon-devel | Nov 17, 2018 | Aug 25, 2018 |
| Ubuntu | — | Upgrade libxkbcommon0Upgrade libxkbcommon-x11-0 | Oct 17, 2018 | Aug 25, 2018 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub