Debian Long Term Support / LTS Security Information / 2021 / Security Information -- DLA-2743-1 amd64-microcode

Debian Security Advisory

DLA-2743-1 amd64-microcode -- LTS security update

Date Reported:

16 Aug 2021

Affected Packages:

amd64-microcode

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 886382.
In Mitre's CVE dictionary: CVE-2017-5715.

More information:

It was discovered that systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (Spectre v2). Multiple fixes were done already in Linux kernel, intel-microcode, et al. This fix adds amd-microcode-based IBPB support.

For Debian 9 stretch, this problem has been fixed in version 3.20181128.1~deb9u1.

We recommend that you upgrade your amd64-microcode packages.

For the detailed security status of amd64-microcode please refer to its security tracker page at: https://security-tracker.debian.org/tracker/amd64-microcode

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