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CVE-2019-15031

MEDIUM

4.4

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.

CVE Details

CVSS v3.1 Score4.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published9/13/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

canonical:ubuntu_linuxlinux:linux_kernelopensuse:leapredhat:enterprise_linux

Weaknesses (CWE)

CWE-662

References

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2019/09/10/4(cve@mitre.org)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a8318c13e79badb92bc6640704a64cc022a6eb97(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20191004-0001/(cve@mitre.org)

https://usn.ubuntu.com/4135-1/(cve@mitre.org)

https://usn.ubuntu.com/4135-2/(cve@mitre.org)

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html(af854a3a-2127-422b-91ae-364da2661108)

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2019/09/10/4(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a8318c13e79badb92bc6640704a64cc022a6eb97(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20191004-0001/(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4135-1/(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4135-2/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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