CVE-2023-6377

HighCVSS 7.8/10Last modified Nov 4, 2026

Description

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION—
Red HatRed Hat Enterprise Linux 7—
Red HatRed Hat Enterprise Linux 7—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 8—
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support—
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support—
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service—
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions—
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support—
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Enterprise Linux 9—
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support—
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support—
Red HatRed Hat Enterprise Linux 6—

References

Timeline

Published
Dec 13, 2023
Last modified
Nov 4, 2026
NVD status
Modified

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CVE-2023-6377: High severity, CVSS 7.8 | Vulnix