CVE-2023-43785
published 2023-10-10CVE-2023-43785: A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an…
PriorityP423medium5.5CVSS 3.1
AVLACLPRLUINSUCHINAN
EPSS
0.63%
46.3th percentile
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libx11 | < libx11 2:1.8.4-2+deb12u2 (bookworm) | libx11 2:1.8.4-2+deb12u2 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | cbl2_libx11_1.8.7-1_on_cbl_mariner_2.0 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| x.org | libx11 | < 1.8.7 | 1.8.7 |
| x.org | libx11 | >= 0 < 2:1.7.2-1+deb11u2 | 2:1.7.2-1+deb11u2 |
| x.org | libx11 | >= 0 < 2:1.8.4-2+deb12u2 | 2:1.8.4-2+deb12u2 |
| x.org | libx11 | >= 0 < 2:1.8.7-1 | 2:1.8.7-1 |
| x.org | libx11 | >= 0 < 2:1.8.7-1 | 2:1.8.7-1 |
| x.org | libx11 | >= 0 < 2:1.6.9-2ubuntu1.6 | 2:1.6.9-2ubuntu1.6 |
| x.org | libx11 | >= 0 < 2:1.7.5-1ubuntu0.3 | 2:1.7.5-1ubuntu0.3 |
| x.org | libx11 | >= 0 < 2:1.6.2-1ubuntu2.1+esm5 | 2:1.6.2-1ubuntu2.1+esm5 |
| x.org | libx11 | >= 0 < 2:1.6.3-1ubuntu2.2+esm4 | 2:1.6.3-1ubuntu2.2+esm4 |
| x.org | libx11 | >= 0 < 2:1.6.4-3ubuntu0.4+esm2 | 2:1.6.4-3ubuntu0.4+esm2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
osv5.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_msrc5.5MEDIUM
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Microsoft
Libx11: out-of-bounds memory access in _xkbreadkeysyms()
vendor_msrc·2023-10-10·CVSS 5.5
CVE-2023-43785 [MEDIUM] CWE-125 Libx11: out-of-bounds memory access in _xkbreadkeysyms()
Libx11: out-of-bounds memory access in _xkbreadkeysyms()
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://le
Ubuntu
libx11 vulnerabilities
vendor_ubuntu·2023-10-10·CVSS 6.5
CVE-2023-43786 [MEDIUM] libx11 vulnerabilities
Title: libx11 vulnerabilities
Summary: Several security issues were fixed in libx11.
USN-6407-1 fixed several vulnerabilities in libx11. This update provides
the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
Original advisory details:
Gregory James Duck discovered that libx11 incorrectly handled certain
keyboard symbols. If a user were tricked into connecting to a malicious X
server, a remote attacker could use this issue to cause libx11 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-43785)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consum
Red Hat
libX11: out-of-bounds memory access in _XkbReadKeySyms()
vendor_redhat·2023-10-04·CVSS 6.5
CVE-2023-43785 [MEDIUM] CWE-787 libX11: out-of-bounds memory access in _XkbReadKeySyms()
libX11: out-of-bounds memory access in _XkbReadKeySyms()
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
Package: libX11 (Red Hat Enterprise Linux 6) - Out of support scope
Package: libX11 (Red Hat Enterprise Linux 7) - Out of support scope
BSD
OpenBSD 7.2 Errata 039: SECURITY FIX
bsd_advisories·2023-10-03·CVSS 6.5
CVE-2023-43785 [MEDIUM] OpenBSD 7.2 Errata 039: SECURITY FIX
OpenBSD 7.2 Errata 039: SECURITY FIX
039: SECURITY FIX: October 3, 2023
All architectures Fix several input validation errors in libX11 and libXpm. CVE-2023-43785 CVE-2023-43786 CVE-2023-43787 CVE-2023-43788 CVE-2023-43789
Ubuntu
libx11 vulnerabilities
vendor_ubuntu·2023-10-03·CVSS 6.5
CVE-2023-43785 [MEDIUM] libx11 vulnerabilities
Title: libx11 vulnerabilities
Summary: Several security issues were fixed in libx11.
Gregory James Duck discovered that libx11 incorrectly handled certain
keyboard symbols. If a user were tricked into connecting to a malicious X
server, a remote attacker could use this issue to cause libx11 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-43785)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consume
memory, leading to a denial of service. (CVE-2023-43786)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a
BSD
OpenBSD 7.3 Errata 017: SECURITY FIX
bsd_advisories·2023-10-03·CVSS 6.5
CVE-2023-43785 [MEDIUM] OpenBSD 7.3 Errata 017: SECURITY FIX
OpenBSD 7.3 Errata 017: SECURITY FIX
017: SECURITY FIX: October 3, 2023
All architectures Fix several input validation errors in libX11 and libXpm. CVE-2023-43785 CVE-2023-43786 CVE-2023-43787 CVE-2023-43788 CVE-2023-43789
Debian
CVE-2023-43785: libx11 - A vulnerability was found in libX11 due to a boundary condition within the _XkbR...
vendor_debian·2023·CVSS 6.5
CVE-2023-43785 [MEDIUM] CVE-2023-43785: libx11 - A vulnerability was found in libX11 due to a boundary condition within the _XkbR...
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
Scope: local
bookworm: resolved (fixed in 2:1.8.4-2+deb12u2)
bullseye: resolved (fixed in 2:1.7.2-1+deb11u2)
forky: resolved (fixed in 2:1.8.7-1)
sid: resolved (fixed in 2:1.8.7-1)
trixie: resolved (fixed in 2:1.8.7-1)
OSV
libx11 vulnerabilities
osv·2023-10-10·CVSS 5.5
[MEDIUM] libx11 vulnerabilities
libx11 vulnerabilities
USN-6407-1 fixed several vulnerabilities in libx11. This update provides
the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
Original advisory details:
Gregory James Duck discovered that libx11 incorrectly handled certain
keyboard symbols. If a user were tricked into connecting to a malicious X
server, a remote attacker could use this issue to cause libx11 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-43785)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consume
memory, leading to a denial of service. (CVE-2023-43786)
Yai
OSV
CVE-2023-43785: A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function
osv·2023-10-10·CVSS 5.5
CVE-2023-43785 [MEDIUM] CVE-2023-43785: A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
GHSA
GHSA-9368-fgh5-gh2f: A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function
ghsa_unreviewed·2023-10-10
CVE-2023-43785 [MEDIUM] CWE-125 GHSA-9368-fgh5-gh2f: A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function
A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system.
OSV
libx11 vulnerabilities
osv·2023-10-03·CVSS 5.5
CVE-2023-43785 [MEDIUM] libx11 vulnerabilities
libx11 vulnerabilities
Gregory James Duck discovered that libx11 incorrectly handled certain
keyboard symbols. If a user were tricked into connecting to a malicious X
server, a remote attacker could use this issue to cause libx11 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-43785)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consume
memory, leading to a denial of service. (CVE-2023-43786)
Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could use
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/errata/RHSA-2024:2145https://access.redhat.com/errata/RHSA-2024:2973https://access.redhat.com/security/cve/CVE-2023-43785https://bugzilla.redhat.com/show_bug.cgi?id=2242252https://access.redhat.com/errata/RHSA-2024:2145https://access.redhat.com/errata/RHSA-2024:2973https://access.redhat.com/security/cve/CVE-2023-43785https://bugzilla.redhat.com/show_bug.cgi?id=2242252https://lists.debian.org/debian-lts-announce/2023/10/msg00004.htmlhttps://security.netapp.com/advisory/ntap-20231103-0006/
2023-10-10
Published