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Debian Security Advisory DSA-5924-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
May 23, 2025                          https://www.debian.org/security/faq
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Package        : intel-microcode
CVE ID         : CVE-2024-28956 CVE-2024-43420 CVE-2024-45332 CVE-2025-20012
                 CVE-2025-20054 CVE-2025-20103 CVE-2025-20623 CVE-2025-24495
Debian Bug     : 1105172

This update ships updated CPU microcode for some types of Intel CPUs. In
particular it provides mitigations for the Indirect Target Selection
(ITS) vulnerability (CVE-2024-28956) and the Branch Privilege Injection
vulnerability (CVE-2024-45332).

For CPUs affected to ITS (Indirect Target Selection), to fully mitigate
the vulnerability it is also necessary to update the Linux kernel
packages released in a separate, forthcoming DSA.

For details on the Indirect Target Selection (ITS) vulnerability please
refer to https://www.vusec.net/projects/training-solo/ and
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/indirect-target-selection.html .

For details on the Branch Privilege Injection vulnerability please refer
to https://comsec.ethz.ch/research/microarch/branch-privilege-injection/

For the stable distribution (bookworm), these problems have been fixed in
version 3.20250512.1~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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