USN-4385-1: Intel Microcode vulnerabilities<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
Several security issues were fixed in Intel Microcode.<\/p>\n
It was discovered that memory contents previously stored in
\nmicroarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
\nread operations on Intel client and Xeon E3 processors may be briefly
\nexposed to processes on the same or different processor cores. A local
\nattacker could use this to expose sensitive information. (CVE-2020-0543)<\/p>\n
It was discovered that on some Intel processors, partial data values
\npreviously read from a vector register on a physical core may be propagated
\ninto unused portions of the store buffer. A local attacker could possible
\nuse this to expose sensitive information. (CVE-2020-0548)<\/p>\n
It was discovered that on some Intel processors, data from the most
\nrecently evicted modified L1 data cache (L1D) line may be propagated into
\nan unused (invalid) L1D fill buffer. A local attacker could possibly use
\nthis to expose sensitive information. (CVE-2020-0549)<\/p>\n
The problem can be corrected by updating your system to the following package versions:<\/p>\n
To update your system, please follow these instructions: https:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.<\/p>\n After a standard system update you need to reboot your computer to Source: USN-4385-1: Intel Microcode vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-4385-1: Intel Microcode vulnerabilities intel-microcode vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 20.04 LTS Ubuntu 19.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Summary Several security issues were fixed in Intel Microcode. Software Description intel-microcode – Processor microcode for Intel CPUs Details It was discovered that memory contents previously stored in microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly exposed to processes on the same or different processor cores. A local attacker could use this to expose sensitive information. (CVE-2020-0543) It was discovered that on some Intel processors, partial data values previously read from a vector register on a physical core may be propagated into unused portions of the store buffer. A local attacker could possible use this to [ more… ]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[586],"tags":[587],"class_list":["post-37165","post","type-post","status-publish","format-standard","hentry","category-ubuntu-usn","tag-ubuntu-usn"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/37165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/comments?post=37165"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/37165\/revisions"}],"predecessor-version":[{"id":37166,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/37165\/revisions\/37166"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=37165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=37165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=37165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nmake all the necessary changes.<\/p>\nReferences<\/h2>\n
\n