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Debian Security Advisory 5519-1
Debian Linux Security Advisory 5519-1 - Maxim Suhanov discovered multiple vulnerabilities in GURB2’s code to handle NTFS filesystems, which may result in a Secure Boot bypass.
-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512- -------------------------------------------------------------------------Debian Security Advisory DSA-5519-1 [email protected]://www.debian.org/security/ Salvatore BonaccorsoOctober 06, 2023 https://www.debian.org/security/faq- -------------------------------------------------------------------------Package : grub2CVE ID : CVE-2023-4692 CVE-2023-4693Maxim Suhanov discovered multiple vulnerabilities in GURB2's code tohandle NTFS filesystems, which may result in a Secure Boot bypass.For the oldstable distribution (bullseye), these problems have been fixedin version 2.06-3~deb11u6.For the stable distribution (bookworm), these problems have been fixed inversion 2.06-13+deb12u1.We recommend that you upgrade your grub2 packages.For the detailed security status of grub2 please refer to its securitytracker page at:https://security-tracker.debian.org/tracker/grub2Further information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: https://www.debian.org/security/Mailing list: [email protected] PGP SIGNATURE-----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+IHG-----END PGP SIGNATURE-----Related news
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Ubuntu Security Notice 6410-1 - 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. 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.