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CVE-2016-7943

libX11: Insufficient validation of server responses in FontNames

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Severity

Moderate

Red Hat Product Security

5

CVSS 3.0

Review impact separately from score.

Published · September 25, 2016

Updated · November 21, 2025

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS 2.0 · 5.4
AV:A/AC:M/Au:N/C:P/I:P/A:P

CWE not specified