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Debian Security Advisory DSA-5563-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 23, 2023                     https://www.debian.org/security/faq
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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: debian-security-announce@lists.debian.org
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