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HistoryDec 16, 2023 - 5:32 p.m.

[SECURITY] [DLA 3690-1] intel-microcode security update

2023-12-1617:32:51
lists.debian.org
12
denial of service
cve-2023-23583
privilege escalation
intel-microcode
information disclosure
security update
debian 10

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6

Confidence

Low

EPSS

0

Percentile

5.1%


Debian LTS Advisory DLA-3690-1 [email protected]
https://www.debian.org/lts/security/ Tobias Frost
December 16, 2023 https://wiki.debian.org/LTS

Package : intel-microcode
Version : 3.20231114.1~deb10u1
CVE ID : CVE-2023-23583
Debian Bug : 1055962

Benoit Morgan, Paul Grosen, Thais Moreira Hamasaki, Ke Sun, Alyssa
Milburn, Hisham Shafi, Nir Shlomovich, Tavis Ormandy, Daniel Moghimi,
Josh Eads, Salman Qazi, Alexandra Sandulescu, Andy Nguyen, Eduardo Vela,
Doug Kwan, and Kostik Shtoyk discovered that some Intel processors
mishandle repeated sequences of instructions leading to unexpected
behavior, which may result in privilege escalation, information
disclosure or denial of service.

For Debian 10 buster, this problem has been fixed in version
3.20231114.1~deb10u1.

We recommend that you upgrade your intel-microcode packages.

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

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
Attachment:
signature.asc
Description: PGP signature

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6

Confidence

Low

EPSS

0

Percentile

5.1%