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HistoryNov 23, 2023 - 3:46 p.m.

[SECURITY] [DSA 5563-1] intel-microcode security update

2023-11-2315:46:30
lists.debian.org
79
cpu vulnerability
debian
denial of service
privilege escalation
intel-microcode
information disclosure
security update

8.8 High

CVSS3

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%


Debian Security Advisory DSA-5563-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
November 23, 2023 https://www.debian.org/security/faq


Package : intel-microcode
CVE ID : CVE-2023-23583
Debian Bug : 1055962

Benoit Morgan, Paul Grosen, Thais Moreira Hamasaki, Ke Sun, Alyssa
Milburn, Hisham Shafi, Nir Shlomovich, avis 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 the oldstable distribution (bullseye), this problem has been fixed
in version 3.20231114.1~deb11u1.

For the stable distribution (bookworm), this problem has been fixed in
version 3.20231114.1~deb12u1.

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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

8.8 High

CVSS3

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%