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SUSE: CVE-2020-27674: SUSE Linux Security Advisory

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SUSE: CVE-2020-27674: SUSE Linux Security Advisory

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
10/22/2020
Created
12/14/2020
Added
12/11/2020
Modified
10/22/2021

Description

An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.

Solution(s)

  • suse-upgrade-xen
  • suse-upgrade-xen-devel
  • suse-upgrade-xen-doc-html
  • suse-upgrade-xen-kmp-default
  • suse-upgrade-xen-kmp-pae
  • suse-upgrade-xen-libs
  • suse-upgrade-xen-libs-32bit
  • suse-upgrade-xen-tools
  • suse-upgrade-xen-tools-domu
  • suse-upgrade-xen-tools-xendomains-wait-disk

References

  • SUSE-SU-2020:14557-1
  • SUSE-SU-2020:3611-1
  • SUSE-SU-2020:3615-1
  • SUSE-SU-2020:3627-1
  • SUSE-SU-2020:3631-1
  • SUSE-SU-2020:3653-1
  • SUSE-SU-2020:3742-1
  • CVE-2020-27674
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