Test ID:	1.3.6.1.4.1.25623.1.1.12.2023.6407.1
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-6407-1)
Summary:	The remote host is missing an update for the 'libx11' package(s) announced via the USN-6407-1 advisory.
Description:	Summary: The remote host is missing an update for the 'libx11' package(s) announced via the USN-6407-1 advisory. Vulnerability Insight: 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 this issue to cause libx11 to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2023-43787) Affected Software/OS: 'libx11' package(s) on Ubuntu 20.04, Ubuntu 22.04, Ubuntu 23.04. Solution: Please install the updated package(s). CVSS Score: 6.8 CVSS Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2023-43785 RHBZ#2242252 https://bugzilla.redhat.com/show_bug.cgi?id=2242252 RHSA-2024:2145 https://access.redhat.com/errata/RHSA-2024:2145 RHSA-2024:2973 https://access.redhat.com/errata/RHSA-2024:2973 https://access.redhat.com/security/cve/CVE-2023-43785 https://security.netapp.com/advisory/ntap-20231103-0006/ Common Vulnerability Exposure (CVE) ID: CVE-2023-43786 RHBZ#2242253 https://bugzilla.redhat.com/show_bug.cgi?id=2242253 http://www.openwall.com/lists/oss-security/2024/01/24/9 https://access.redhat.com/security/cve/CVE-2023-43786 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/63IBRFLQVZSMOAZBZOBKFWJP26ILRAGQ/ Common Vulnerability Exposure (CVE) ID: CVE-2023-43787 RHBZ#2242254 https://bugzilla.redhat.com/show_bug.cgi?id=2242254 https://access.redhat.com/security/cve/CVE-2023-43787 https://jfrog.com/blog/xorg-libx11-vulns-cve-2023-43786-cve-2023-43787-part-two/
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