NULL Pointer Dereference Affecting xorg-x11-drv-ati package, versions <0:19.0.1-2.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RHEL7-XORGX11DRVATI-4930925
- published26 Jul 2021
- disclosed10 Mar 2018
Introduced: 10 Mar 2018
CVE-2018-15854 (opens in a new tab)How to fix?
Upgrade RHEL:7 xorg-x11-drv-ati to version 0:19.0.1-2.el7 or higher.
This issue was patched in RHSA-2019:2079.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xorg-x11-drv-ati package and not the xorg-x11-drv-ati package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because geometry tokens were desupported incorrectly.
References
- https://access.redhat.com/security/cve/CVE-2018-15854
- https://security.gentoo.org/glsa/201810-05
- https://github.com/xkbcommon/libxkbcommon/commit/e3cacae7b1bfda0d839c280494f23284a1187adf
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html
- https://access.redhat.com/errata/RHSA-2019:2079
- https://usn.ubuntu.com/3786-1/
- https://usn.ubuntu.com/3786-2/