Critical severity · published Aug 24, 2018
CVE-2018-14600
An issue was discovered in libX11 through 1.6.5
9.8
CVSS
9.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)9.3% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
LI
Libx11 · X.org
through 1.6.5 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 16.04; 18.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14600
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14600
Mailing List
http://www.openwall.com/lists/oss-security/2018/08/21/6
Third Party Advisory
http://www.securityfocus.com/bid/105177
Third Party Advisory
http://www.securitytracker.com/id/1041543
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2079
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1102068
Patch
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea
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