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nvd[email protected]NVD:CVE-2019-15031
HistorySep 13, 2019 - 1:15 p.m.

CVE-2019-15031

2019-09-1313:15:11
CWE-662
web.nvd.nist.gov
1

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS3

4.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

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

AI Score

6.1

Confidence

Low

EPSS

0

Percentile

5.1%

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.

Affected configurations

NVD
Node
linuxlinux_kernelRange≀5.2.14
Node
canonicalubuntu_linuxMatch12.04esm
OR
canonicalubuntu_linuxMatch14.04esm
OR
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch18.04lts
OR
canonicalubuntu_linuxMatch19.04
OR
opensuseleapMatch15.0
OR
opensuseleapMatch15.1
OR
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS3

4.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

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

AI Score

6.1

Confidence

Low

EPSS

0

Percentile

5.1%