CVE-2016-7943
9.8
CRITICAL
CVSS 3.1
EPSS 4.7%
Description
The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.
How to fix CVE-2016-7943
To remediate CVE-2016-7943, upgrade the affected package to a fixed version below.
- Alpine/libx11—upgrade to 1.6.3-r1 or later
- Debian/libx11—upgrade to 2:1.6.4-1 or later
Is CVE-2016-7943 being exploited?
Low — EPSS is 4.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.6.3-r1
- from 0, < 2:1.6.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |