Описание
Security update for grub2
This update for grub2 fixes the following issues:
Security fixes:
- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. (bsc#1215935)
- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. (bsc#1215936)
Other fixes:
- Fix a boot delay issue in PowerPC PXE boot (bsc#1201300)
Список пакетов
Container suse/hpc/warewulf4-x86_64/sle-hpc-node:latest
Container suse/sle-micro/base-5.5:latest
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SUSE Linux Enterprise Micro 5.5
SUSE Linux Enterprise Module for Basesystem 15 SP5
SUSE Linux Enterprise Module for Server Applications 15 SP5
Ссылки
- Link for SUSE-SU-2023:4141-1
- E-Mail link for SUSE-SU-2023:4141-1
- SUSE Security Ratings
- SUSE Bug 1201300
- SUSE Bug 1215935
- SUSE Bug 1215936
- SUSE CVE CVE-2023-4692 page
- SUSE CVE CVE-2023-4693 page
Описание
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.
Затронутые продукты
Ссылки
- CVE-2023-4692
- SUSE Bug 1215935
- SUSE Bug 1217434
- SUSE Bug 1217555
- SUSE Bug 1219472
- SUSE Bug 1219709
- SUSE Bug 1221589
- SUSE Bug 1227915
Описание
An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.
Затронутые продукты
Ссылки
- CVE-2023-4693
- SUSE Bug 1215936