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SUSE: CVE-2019-15031: SUSE Linux Security Advisory

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SUSE: CVE-2019-15031: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:P)
Published
09/13/2019
Created
09/24/2019
Added
09/21/2019
Modified
02/04/2022

Description

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process, because MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.

Solution(s)

  • suse-upgrade-cluster-md-kmp-default
  • suse-upgrade-dlm-kmp-default
  • suse-upgrade-gfs2-kmp-default
  • suse-upgrade-kernel-default
  • suse-upgrade-kernel-default-extra
  • suse-upgrade-kernel-docs
  • suse-upgrade-kernel-obs-build
  • suse-upgrade-ocfs2-kmp-default

References

  • SUSE-SU-2019:2412-1
  • SUSE-SU-2019:2414-1
  • SUSE-SU-2019:2424-1
  • SUSE-SU-2019:2648-1
  • SUSE-SU-2019:2651-1
  • SUSE-SU-2019:2658-1
  • SUSE-SU-2019:2738-1
  • SUSE-SU-2019:2756-1
  • SUSE-SU-2019:3200-1
  • SUSE-SU-2020:0093-1
  • USN-4135-1
  • USN-4135-2
  • CVE-2019-15031
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