CVE-2018-1091

Medium

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.

Package Linux Kernel
Published 2018-03-27
Last modified 2024-11-21
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-391

CVE-2018-1091 is classified as CWE-391

See CWE-391 on MITRE CWE for full details on this weakness type.

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2018-1091?

    CVE-2018-1091 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2018-1091 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-1091?

    CVE-2018-1091 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2018-1091?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-1091 patch availability.

  • Is CVE-2018-1091 actively exploited?

    No. CVE-2018-1091 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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