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 rancher/elemental-teal-rt/5.4:latest
Container rancher/elemental-teal/5.4:latest
Container suse/sle-micro-rancher/5.3:latest
Container suse/sle-micro-rancher/5.4:latest
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Image SLES15-SP4-SUSE-Rancher-Setup-BYOS
Image SLES15-SP4-SUSE-Rancher-Setup-BYOS-EC2
SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Micro 5.4
SUSE Linux Enterprise Module for Basesystem 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP4
SUSE Manager Proxy Module 4.3
Ссылки
- Link for SUSE-SU-2023:4140-1
- E-Mail link for SUSE-SU-2023:4140-1
- 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