—–BEGIN PGP SIGNED MESSAGE—–
\nHash: SHA512<\/p>\n
– ————————————————————————-
\nDebian Security Advisory DSA-5462-1 security@debian.org
\nhttps:\/\/www.debian.org\/security\/ Salvatore Bonaccorso
\nJuly 30, 2023 https:\/\/www.debian.org\/security\/faq
\n– ————————————————————————-<\/p>\n
Package : linux
\nCVE ID : CVE-2023-20593<\/p>\n
Tavis Ormandy discovered that under specific microarchitectural
\ncircumstances, a vector register in AMD “Zen 2” CPUs may not be
\nwritten to 0 correctly. This flaw allows an attacker to leak
\nsensitive information across concurrent processes, hyper threads
\nand virtualized guests.<\/p>\n
For details please refer to
\n<https:\/\/lock.cmpxchg8b.com\/zenbleed.html> and
\n<https:\/\/github.com\/google\/security-research\/security\/advisories\/GHSA-v6wh-rxpg-cmm8>.<\/p>\n
This issue can also be mitigated by a microcode update through the
\namd64-microcode package or a system firmware (BIOS\/UEFI) update.
\nHowever, the initial microcode release by AMD only provides
\nupdates for second generation EPYC CPUs. Various Ryzen CPUs are
\nalso affected, but no updates are available yet.<\/p>\n
For the stable distribution (bookworm), this problem has been fixed in
\nversion 6.1.38-2.<\/p>\n
We recommend that you upgrade your linux packages.<\/p>\n
For the detailed security status of linux please refer to its security
\ntracker page at:
\nhttps:\/\/security-tracker.debian.org\/tracker\/linux<\/p>\n
Further information about Debian Security Advisories, how to apply
\nthese updates to your system and frequently asked questions can be
\nfound at: https:\/\/www.debian.org\/security\/<\/p>\n
Mailing list: debian-security-announce@lists.debian.org
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—–BEGIN PGP SIGNED MESSAGE—– Hash: SHA512 – ————————————————————————- Debian Security Advisory DSA-5462-1 security@debian.org https:\/\/www.debian.org\/security\/ Salvatore Bonaccorso July 30, 2023 https:\/\/www.debian.org\/security\/faq – ————————————————————————- Package : linux CVE ID : CVE-2023-20593 Tavis Ormandy discovered that under specific microarchitectural circumstances, a vector register in AMD “Zen 2” CPUs may not be written to 0 correctly. This flaw allows …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-45892","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/45892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=45892"}],"version-history":[{"count":1,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/45892\/revisions"}],"predecessor-version":[{"id":45995,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/45892\/revisions\/45995"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=45892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=45892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=45892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}