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/articles/technical/software-security-guidance/technical-documentation/gather-data-sampling.html. 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/bulletin/amd-sb-7005. For the oldstable distribution (bullseye), these problems have been fixed in version 5.10.179-5. For the stable distribution (bookworm), these problems have been fixed in version 6.1.38-4. We recommend that you upgrade your linux packages. For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux
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/articles/technical/software-security-guidance/technical-documentation/gather-data-sampling.html.
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/bulletin/amd-sb-7005.
For the oldstable distribution (bullseye), these problems have been fixed in version 5.10.179-5.
For the stable distribution (bookworm), these problems have been fixed in version 6.1.38-4.
We recommend that you upgrade your linux packages.
For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux
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