CWE
193
Advisory Published
Updated

CVE-2018-14599

First published: Fri Aug 24 2018(Updated: )

An issue was discovered in libX11 through 1.6.5. Functions GetFPath.c:XGetFontPath, ListExt.c:XListExtensions and FontNames.c:XListFonts are vulnerable to an off-by-one error when parsing list of strings returned by malicious server responses, leading to DoS. References: <a href="http://www.openwall.com/lists/oss-security/2018/08/21/6">http://www.openwall.com/lists/oss-security/2018/08/21/6</a> <a href="https://lists.x.org/archives/xorg-announce/2018-August/002916.html">https://lists.x.org/archives/xorg-announce/2018-August/002916.html</a> Upstream Patch: <a href="https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=b469da1430cdcee06e31c6251b83aede072a1ff0">https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=b469da1430cdcee06e31c6251b83aede072a1ff0</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
X.Org libX11<=1.6.5
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Debian Debian Linux=8.0
Fedoraproject Fedora=28
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Workstation=7.0
redhat/libX11<1.6.6
1.6.6
debian/libx11
2:1.7.2-1+deb11u2
2:1.8.4-2+deb12u2
2:1.8.7-1

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Frequently Asked Questions

  • What is CVE-2018-14599?

    CVE-2018-14599 is a vulnerability in libX11 through 1.6.5 that allows for a possible denial-of-service or unspecified other impact.

  • How severe is CVE-2018-14599?

    CVE-2018-14599 has a severity rating of 9.8 (Critical).

  • Which software versions are affected by CVE-2018-14599?

    The affected software versions of CVE-2018-14599 include libX11 through 1.6.5.

  • How can I fix CVE-2018-14599?

    To fix CVE-2018-14599, update libX11 to version 1.6.6 or later.

  • Where can I find more information about CVE-2018-14599?

    You can find more information about CVE-2018-14599 at the following references: [http://www.openwall.com/lists/oss-security/2018/08/21/6](http://www.openwall.com/lists/oss-security/2018/08/21/6), [https://lists.x.org/archives/xorg-announce/2018-August/002916.html](https://lists.x.org/archives/xorg-announce/2018-August/002916.html), [https://bugzilla.suse.com/show_bug.cgi?id=1102062](https://bugzilla.suse.com/show_bug.cgi?id=1102062).

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