Test ID:	1.3.6.1.4.1.25623.1.1.12.2023.6410.1
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-6410-1)
Summary:	The remote host is missing an update for the 'grub2-signed, grub2-unsigned' package(s) announced via the USN-6410-1 advisory.
Description:	Summary: The remote host is missing an update for the 'grub2-signed, grub2-unsigned' package(s) announced via the USN-6410-1 advisory. Vulnerability Insight: It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds write. A local attacker could potentially use this to perform arbitrary code execution bypass and bypass secure boot protections. (CVE-2023-4692) It was discovered that a specially crafted file system image could cause an out-of-bounds read. A physically-present attacker could possibly use this to leak sensitive information to the GRUB pager. (CVE-2023-4693) Affected Software/OS: 'grub2-signed, grub2-unsigned' 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-2023-4692 RHBZ#2236613 https://bugzilla.redhat.com/show_bug.cgi?id=2236613 RHSA-2024:2456 https://access.redhat.com/errata/RHSA-2024:2456 RHSA-2024:3184 https://access.redhat.com/errata/RHSA-2024:3184 https://access.redhat.com/security/cve/CVE-2023-4692 https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q/ https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html https://seclists.org/oss-sec/2023/q4/37 https://security.gentoo.org/glsa/202311-14 https://security.netapp.com/advisory/ntap-20231208-0002/ Common Vulnerability Exposure (CVE) ID: CVE-2023-4693 RHBZ#2238343 https://bugzilla.redhat.com/show_bug.cgi?id=2238343 https://access.redhat.com/security/cve/CVE-2023-4693
Copyright	Copyright (C) 2023 Greenbone AG

This is only one of 146377 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.