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rockyRockylinux Product ErrataRLSA-2024:3184
HistoryJun 14, 2024 - 1:59 p.m.

grub2 security update

2024-06-1413:59:16
Rockylinux Product Errata
errata.rockylinux.org
grub2
security update
rocky linux 8
cvss
vulnerability
cve
boot loader
out-of-bounds write
out-of-bounds read
local abuse
unsigned code execution
kernel formats
file systems
architecture
hardware

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 High

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

32.6%

An update is available for grub2.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.

Security Fix(es):

  • grub2: grub2-set-bootflag can be abused by local (pseudo-)users (CVE-2024-1048)

  • grub2: Out-of-bounds write at fs/ntfs.c may lead to unsigned code execution (CVE-2023-4692)

  • grub2: out-of-bounds read at fs/ntfs.c (CVE-2023-4693)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.10 Release Notes linked from the References section.

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 High

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

32.6%