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AUSCERT External Security Bulletin Redistribution
ESB-2021.2258
Security update for microcode_ctl
29 June 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: microcode_ctl
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-24513 CVE-2020-24512 CVE-2020-24511
CVE-2020-24489
Reference: ESB-2021.2243
ESB-2021.2201
ESB-2021.2088
ESB-2021.2055
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-202114758-1
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SUSE Security Update: Security update for microcode_ctl
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:14758-1
Rating: important
References: #1179833 #1179836 #1179837 #1179839
Cross-References: CVE-2020-24489 CVE-2020-24511 CVE-2020-24512 CVE-2020-24513
Affected Products:
SUSE Linux Enterprise Server 11-SP4-LTSS
SUSE Linux Enterprise Point of Sale 11-SP3
______________________________________________________________________________
An update that fixes four vulnerabilities is now available.
Description:
This update for microcode_ctl fixes the following issues:
Updated to Intel CPU Microcode 20210525 release:
o CVE-2020-24513: A domain bypass transient execution vulnerability was
discovered on some Intel Atom processors that use a micro-architectural
incident channel. (bsc#1179833)
o CVE-2020-24511: The IBRS feature to mitigate Spectre variant 2 transient
execution side channel vulnerabilities may not fully prevent non-root
(guest) branches from controlling the branch predictions of the root (host)
(bsc#1179836)
o CVE-2020-24512: Fixed trivial data value cache-lines such as all-zero value
cache-lines may lead to changes in cache-allocation or write-back behavior
for such cache-lines (bsc#1179837)
o CVE-2020-24489: Fixed Intel VT-d device pass through potential local
privilege escalation (bsc#1179839)
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 11-SP4-LTSS:
zypper in -t patch slessp4-microcode_ctl-14758=1
o SUSE Linux Enterprise Point of Sale 11-SP3:
zypper in -t patch sleposp3-microcode_ctl-14758=1
Package List:
o SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):
microcode_ctl-1.17-102.83.71.1
o SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
microcode_ctl-1.17-102.83.71.1
References:
o https://www.suse.com/security/cve/CVE-2020-24489.html
o https://www.suse.com/security/cve/CVE-2020-24511.html
o https://www.suse.com/security/cve/CVE-2020-24512.html
o https://www.suse.com/security/cve/CVE-2020-24513.html
o https://bugzilla.suse.com/1179833
o https://bugzilla.suse.com/1179836
o https://bugzilla.suse.com/1179837
o https://bugzilla.suse.com/1179839
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