CVE-2018-1091 - CVE House
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Status published Medium CVE-2018-1091

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel...

Vulnerability Description

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux kernel v4.13 and newer
Vulnerable Versions:
Linux kernel v4.13 and newer

Timeline

Official Publish: March 27th, 2018
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-391

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.