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An ntel-microcode security update has been released for Debian GNU/Linux 10 LTS:

[DLA 3690-1] intel-microcode security update

[DLA 3690-1] intel-microcode security update

Debian LTS Advisory DLA-3690-1 Tobias Frost
December 16, 2023

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

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:

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