CVE-2018-14599

Description

An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.47% Top 25%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/3758-2/ third party advisory vendor advisory
https://bugzilla.suse.com/show_bug.cgi?id=1102062 patch third party advisory issue tracking
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=b469da1430cdcee06e31c6251b83aede072a1ff0 third party advisory patch
https://security.gentoo.org/glsa/201811-01 third party advisory vendor advisory
http://www.securityfocus.com/bid/105177 third party advisory vdb entry
http://www.openwall.com/lists/oss-security/2018/08/21/6 third party advisory mailing list
http://www.securitytracker.com/id/1041543 third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00030.html third party advisory mailing list
https://lists.x.org/archives/xorg-announce/2018-August/002916.html third party advisory mailing list
https://usn.ubuntu.com/3758-1/ third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGARUV66TS5OOSLR5A76BUB7SDV6GO4F/ vendor advisory
https://access.redhat.com/errata/RHSA-2019:2079 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14599?
CVE-2018-14599 has been scored as a critical severity vulnerability.
How to fix CVE-2018-14599?
To fix CVE-2018-14599, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-14599 being actively exploited in the wild?
It is possible that CVE-2018-14599 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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