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debianDebianDEBIAN:DLA-3813-1:F5BD0
HistoryMay 14, 2024 - 9:57 a.m.

[SECURITY] [DLA 3813-1] shim security update

2024-05-1409:57:15
lists.debian.org
2
shim bootloader
debian
cve-2023-40547
lts
cve-2023-40548
cve-2023-40546
cve-2023-40549
debian 10 buster
security update
cve-2023-40551
secure boot
cve-2023-40550

8.3 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.1 High

AI Score

Confidence

High

0.025 Low

EPSS

Percentile

90.2%


Debian LTS Advisory DLA-3813-1 [email protected]
https://www.debian.org/lts/security/ Bastien Roucariès
May 13, 2024 https://wiki.debian.org/LTS


Package : shim
Version : 15.8-1~deb10u1
CVE ID : CVE-2023-40546 CVE-2023-40547 CVE-2023-40548 CVE-2023-40549 CVE-2023-40550 CVE-2023-40551
Debian Bug : 1046268 1069054

This release fixes various issues in shim bootloader and updates it to
a supported version. Older versions of the shim may eventually be blocked
by Secure Boot, so it is strongly advised for Secure Boot enabled systems
to upgrade to this newer version to keep the system bootable.

For Debian 10 buster, this problem has been fixed in version
15.8-1~deb10u1.

We recommend that you upgrade your shim packages.

For the detailed security status of shim please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/shim

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

8.3 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.1 High

AI Score

Confidence

High

0.025 Low

EPSS

Percentile

90.2%