VulnerabilityModified

CVE-2023-6377

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.

HIGH 7.8EPSS 1.59%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.59% probability · 74th percentile
CISA KEV: Not listed
Weakness: CWE-125
Affected: redhat/enterprise linux eus · debian/debian linux · x.org/x server · x.org/xwayland · tigervnc/tigervnc
Source: secalert@redhat.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.