Debian: Security Advisory for intel-microcode (DSA-4934-1)

The remote host is missing an update for the 'intel-microcode' package(s) announced via the DSA-4934-1 advisory.

This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for security vulnerabilities which could result in privilege escalation in combination with VT-d and various side channel attacks.

'intel-microcode' package(s) on Debian Linux.

Checks if a vulnerable package version is present on the target host.

For the stable distribution (buster), these problems have been fixed in version 3.20210608.2~deb10u1. Note that there are two reported regressions, for some CoffeeLake CPUs this update may break iwlwifi ([link moved to references]) and some for Skylake R0/D0 CPUs on systems using a very outdated firmware/BIOS, the system may hang on boot: ([link moved to references]) If you are affected by those issues, you can recover by disabling microcode loading on boot (as documented in README.Debian, also available online at [link moved to references]) We recommend that you upgrade your intel-microcode packages.