Debian alert DLA-3525-1 (linux-5.10)

From:
             
 
Ben Hutchings <benh@debian.org>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 3525-1] linux-5.10 security update
Date:
             
 
Fri, 11 Aug 2023 19:21:05 +0200
Message-ID:
             
 
<ZNZuAYrqdmVmDDMN@decadent.org.uk>
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Debian LTS Advisory DLA-3525-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                        Ben Hutchings
August 11, 2023                               https://wiki.debian.org/LTS
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Package        : linux-5.10
Version        : 5.10.179-5~deb10u1
CVE ID         : CVE-2022-40982 CVE-2023-20569

CVE-2022-40982

    Daniel Moghimi discovered Gather Data Sampling (GDS), a hardware
    vulnerability for Intel CPUs which allows unprivileged speculative
    access to data which was previously stored in vector registers.

    This mitigation requires updated CPU microcode provided in the
    intel-microcode package.

    For details please refer to <https://downfall.page/> and

<https://www.intel.com/content/www/us/en/developer/article...>.

CVE-2023-20569

    Daniel Trujillo, Johannes Wikner and Kaveh Razavi discovered
    INCEPTION, also known as Speculative Return Stack Overflow (SRSO),
    a transient execution attack that leaks arbitrary data on all AMD
    Zen CPUs. An attacker can mis-train the CPU BTB to predict non-
    architectural CALL instructions in kernel space and use this to
    control the speculative target of a subsequent kernel RET,
    potentially leading to information disclosure via a speculative
    side-channel.

    For details please refer to
    <https://comsec.ethz.ch/research/microarch/inception/> and
    <https://www.amd.com/en/corporate/product-security/bulleti...>.

For Debian 10 buster, these problems have been fixed in version
5.10.179-5~deb10u1.

We recommend that you upgrade your linux-5.10 packages.

For the detailed security status of linux-5.10 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/linux-5.10

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