CVE-2018-14600
published 2018-08-24CVE-2018-14600: 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…
PriorityP356critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EPSS
9.34%
94.8th percentile
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.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | libx11 | < libx11 2:1.6.6-1 (bookworm) | libx11 2:1.6.6-1 (bookworm) |
| x.org | libx11 | <= 1.6.5 | — |
| x.org | libx11 | >= 0 < 2:1.6.6-1 | 2:1.6.6-1 |
| x.org | libx11 | >= 0 < 2:1.6.6-1 | 2:1.6.6-1 |
| x.org | libx11 | >= 0 < 2:1.6.6-1 | 2:1.6.6-1 |
| x.org | libx11 | >= 0 < 2:1.6.6-1 | 2:1.6.6-1 |
| x.org | libx11 | >= 0 < 2:1.6.2-1ubuntu2.1 | 2:1.6.2-1ubuntu2.1 |
| x.org | libx11 | >= 0 < 2:1.6.3-1ubuntu2.1 | 2:1.6.3-1ubuntu2.1 |
| x.org | libx11 | >= 0 < 2:1.6.4-3ubuntu0.1 | 2:1.6.4-3ubuntu0.1 |
CVSS provenance
nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8LOW
vendor_redhat9.8CRITICAL
vendor_ubuntu9.8CRITICAL
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GHSA
GHSA-8j8v-r4qq-96r9: An issue was discovered in libX11 through 1
ghsa_unreviewed·2022-05-14
CVE-2018-14600 [CRITICAL] CWE-787 GHSA-8j8v-r4qq-96r9: An issue was discovered in libX11 through 1
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.
OSV
libx11 vulnerabilities
osv·2018-08-30·CVSS 9.8
CVE-2016-7942 [CRITICAL] libx11 vulnerabilities
libx11 vulnerabilities
Tobias Stoeckmann discovered that libx11 incorrectly handled certain images.
An attacker could possibly use this issue to access sensitive information
(CVE-2016-7942)
Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to access sensitive information.
(CVE-2016-7943)
It was discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14598, CVE-2018-14599, CVE-2018-14600)
OSV
CVE-2018-14600: An issue was discovered in libX11 through 1
osv·2018-08-24·CVSS 9.8
CVE-2018-14600 [CRITICAL] CVE-2018-14600: An issue was discovered in libX11 through 1
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.
Ubuntu
libx11 vulnerabilities
vendor_ubuntu·2018-08-30·CVSS 9.8
CVE-2016-7942 [CRITICAL] libx11 vulnerabilities
Title: libx11 vulnerabilities
Summary: Several security issues were fixed in libx11.
Tobias Stoeckmann discovered that libx11 incorrectly handled certain images.
An attacker could possibly use this issue to access sensitive information
(CVE-2016-7942)
Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to access sensitive information.
(CVE-2016-7943)
It was discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14598, CVE-2018-14599, CVE-2018-14600)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Ubuntu
libx11 vulnerabilities
vendor_ubuntu·2018-08-30·CVSS 9.8
CVE-2016-7942 [CRITICAL] libx11 vulnerabilities
Title: libx11 vulnerabilities
Summary: Several security issues were fixed in libx11.
USN-3758-1 fixed several vulnerabilities in libx11. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Tobias Stoeckmann discovered that libx11 incorrectly handled certain images.
An attacker could possibly use this issue to access sensitive information
(CVE-2016-7942)
Tobias Stoeckmann discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to access sensitive information.
(CVE-2016-7943)
It was discovered that libx11 incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14598, CVE-2018-14599, CVE-2018-14600)
Instructions: After a standard system u
Red Hat
libX11: Out of Bounds write in XListExtensions in ListExt.c
vendor_redhat·2018-08-21·CVSS 9.8
CVE-2018-14600 [CRITICAL] CWE-787 libX11: Out of Bounds write in XListExtensions in ListExt.c
libX11: Out of Bounds write in XListExtensions in ListExt.c
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.
An out of bounds write, limited to NULL bytes, was discovered in libX11 in functions XListExtensions() and XGetFontPath(). The length field is considered as a signed value, which makes the library access memory before the intended buffer. An attacker who can either configure a malicious X server or modify the data coming from one could use this flaw to make the program crash or have other unspecified effects, caused by the memory corruption.
Statement: To exploit the vulnerability an attac
Debian
CVE-2018-14600: libx11 - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in...
vendor_debian·2018·CVSS 9.8
CVE-2018-14600 [CRITICAL] CVE-2018-14600: libx11 - An issue was discovered in libX11 through 1.6.5. The function XListExtensions in...
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.
Scope: local
bookworm: resolved (fixed in 2:1.6.6-1)
bullseye: resolved (fixed in 2:1.6.6-1)
forky: resolved (fixed in 2:1.6.6-1)
sid: resolved (fixed in 2:1.6.6-1)
trixie: resolved (fixed in 2:1.6.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c
bugzilla·2018-08-28·CVSS 9.8
CVE-2018-14600 [CRITICAL] CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c
CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c
An issue was discovered in libX11 through 1.6.5. Functions ListExt.c:XListExtensions and GetFPath.c:XGetFontPath interpret 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.
References:
http://www.openwall.com/lists/oss-security/2018/08/21/6
https://lists.x.org/archives/xorg-announce/2018-August/002916.html
Upstream Patch:
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea
Discussion:
Created libX11 tracking bugs for this issue:
Affects: fedora-all [bug 1623243]
---
Functions ListExt.c:XListExtensions and GetFPath.c:XGetFontPath interpret the length field, which is a char,
Bugzilla
CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c [fedora-all]
bugzilla·2018-08-28·CVSS 9.8
CVE-2018-14600 [CRITICAL] CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c [fedora-all]
CVE-2018-14600 libX11: Out of Bounds write in XListExtensions in ListExt.c [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supporte
http://www.openwall.com/lists/oss-security/2018/08/21/6http://www.securityfocus.com/bid/105177http://www.securitytracker.com/id/1041543https://access.redhat.com/errata/RHSA-2019:2079https://bugzilla.suse.com/show_bug.cgi?id=1102068https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27feahttps://lists.debian.org/debian-lts-announce/2018/08/msg00030.htmlhttps://lists.x.org/archives/xorg-announce/2018-August/002916.htmlhttps://security.gentoo.org/glsa/201811-01https://usn.ubuntu.com/3758-1/https://usn.ubuntu.com/3758-2/http://www.openwall.com/lists/oss-security/2018/08/21/6http://www.securityfocus.com/bid/105177http://www.securitytracker.com/id/1041543https://access.redhat.com/errata/RHSA-2019:2079https://bugzilla.suse.com/show_bug.cgi?id=1102068https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27feahttps://lists.debian.org/debian-lts-announce/2018/08/msg00030.htmlhttps://lists.x.org/archives/xorg-announce/2018-August/002916.htmlhttps://security.gentoo.org/glsa/201811-01https://usn.ubuntu.com/3758-1/https://usn.ubuntu.com/3758-2/
2018-08-24
Published