CVE-2019-15031
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-15031
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-15031.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.2.17-1 |
| debian | bullseye | fixed | 5.2.17-1 |
| debian | forky | fixed | 5.2.17-1 |
| debian | sid | fixed | 5.2.17-1 |
| debian | trixie | fixed | 5.2.17-1 |
References
Verify integrity in audit chain (admin only). AS-IS.