Vulnerability 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 Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| X.Org | Libx11 | <= 1.6.5 |
| Canonical | Ubuntu Linux | 12.04 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2018/08/21/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/105177Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041543Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2079
- https://bugzilla.suse.com/show_bug.cgi?id=1102068Issue TrackingPatchThird Party Advisory
- https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00030.htmlMailing ListThird Party Advisory
- https://lists.x.org/archives/xorg-announce/2018-August/002916.htmlThird Party Advisory
- https://security.gentoo.org/glsa/201811-01Third Party Advisory
- https://usn.ubuntu.com/3758-1/Third Party Advisory
- https://usn.ubuntu.com/3758-2/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/08/21/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/105177Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041543Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2079
FAQ
What is CVE-2018-14600?
CVE-2018-14600 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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)...
How severe is CVE-2018-14600?
CVE-2018-14600 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-14600?
Check the references section above for vendor advisories and patch information. Affected products include: X.Org Libx11, Canonical Ubuntu Linux, Debian Debian Linux.