High severity · published Aug 24, 2018
CVE-2018-14598
An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5
7.5
CVSS
4.2%
EPSS
No
On KEV
Description
An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.2% · higher than 91% 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
FE
Fedora · Fedoraproject
28 · 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-2018-14598
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14598
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=1102073
Patch
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=e83722768fd5c467ef61fa159e8c6278770b45c2
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