SVG:Speculative Execution Vulnerabilities
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Speculative Execution Vulnerabilities
This provides information that may be useful to sites concerning the various speculative execution vulnerabilities concerning Intel chips and other processors.
See also EGI SVG Information on Meltdown and Spectre Vulnerabilities and its related advisory Advisory-SVG-CVE-2017-5753 which was compiled in January and early February 2018.
EGI SVG has at present (14th September 2018) issued 3 advisories related to Speculative Execution Vulnerabilities Advisory-SVG-CVE-2017-5753 in January 2018, Advisory-SVG-CVE-2018-3639 in May 2018 and Advisory-SVG-CVE-2018-3620 in August 2018.
The important thing is that sites carry out recommended updates, including if appropriate their kernel versions. In some cases this may result in reduced performance, but the update should not be omitted because of this.
This https://en.wikipedia.org/wiki/Spectre_(security_vulnerability)provides some information on the variants, the recommended changes concern windows.
|Date||CVE||Exploit Name||Public vulnerability name||EGI SVG Advisory|| EGI SVG Risk
|January 2018||CVE-2017-5753||Spectre(Variant 1)||Bounds Check Bypass (BCB)||Advisory-SVG-CVE-2017-5753||Critical||https://access.redhat.com/security/vulnerabilities/speculativeexecution|
|January 2018||CVE-2017-5715||Spectre(Variant 2)||Branch Target Injection (BTI)||Advisory-SVG-CVE-2017-5753||Critical||see link for CVE-2017-3753|
|January 2018||CVE-2017-5754||Meltdown (Variant 3)||Rogue Data Cache Load (RDCL)||Advisory-SVG-CVE-2017-5753||Critical||see link for CVE-2017-3753|
|May 2018||CVE-2018-3640||SpectreNG(Variant 3a)||Rogue System Register Read (RSRE)||Advisory-SVG-CVE-2018-3639||High||https://www.us-cert.gov/ncas/alerts/TA18-141A|
|May 2018||CVE-2018-3639||SpectreNG(Variant 4)||Speculative Store Bypass (SSB)||Advisory-SVG-CVE-2018-3639||High||https://access.redhat.com/security/vulnerabilities/ssbd|
|June 2018||CVE-2018-3665||Lazy FP state restore||None||Moderate|
|July 2018||CVE-2018-3693||SpectreNG(Variant 1.1)||Bounds Check Bypass Store (BCBS)|| Covered by
|August 2018||CVE-2018-3620||L1TF||OS, SMM related aspects||Advisory-SVG-CVE-2018-3620||High|
|August 2018||CVE-2018-3646||L1TF||Virtualization related aspects||Advisory-SVG-CVE-2018-3620||High||see links for CVE-2018-3620|
|August 2018||CVE-2018-3615||L1TF||SGX related aspects||Advisory-SVG-CVE-2018-3620|| see links for CVE-2018-3620 |
RHEL 7 is not vulnerable but other Linux distributions, such as Debian, are.