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.
References (10)
Core 10
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1036945
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3758-2/
Patch x_refsource_confirm
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201704-03
Various Sources mailing-list
x_refsource_mlist
https://lists.x.org/archives/xorg-announce/2016-October/002720.html
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/10/04/4
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/10/04/2
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/93362
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3758-1/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/
Scores
CVSS v3
9.8
EPSS
0.0429
EPSS Percentile
90.0%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-787
Status
published
Products (2)
fedoraproject/fedora
25
x.org/libx11
< 1.6.3
Published
Dec 13, 2016
Tracked Since
Feb 18, 2026