CVE-2018-14600
Critical
Description
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.
SeverityCritical
CVSS9.8
Exploit probability—
Product
X.org Libx11
PublishedAug 24, 2018
First seenAug 24, 2018
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| x.org libx11 | v ≤ 1.6.5 | — |
| canonical ubuntu_linux | 12.04, 14.04, 16.04, 18.04 | — |
| debian debian_linux | 8.0 | — |
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