CVE-2018-1091

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Summary

CVECVE-2018-1091
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-03-27 21:29:00 UTC
Updated2018-05-10 01:29:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-119

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
kernel/git/torvalds/linux.git - Linux kernel source tree CONFIRM git.kernel.org Patch, Vendor Advisory
1558149 – (CVE-2018-1091) CVE-2018-1091 kernel: guest kernel crash during core dump on POWER9 host CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
'[PATCH v2] powerpc/tm: Flush TM only if CPU has TM feature' - MARC CONFIRM marc.info Patch, Third Party Advisory
oss-security - CVE-2018-1091: Linux kernel: a KVM guest kernel crash during core dump on POWER9 host CONFIRM openwall.com Mailing List, Third Party Advisory
powerpc/tm: Flush TM only if CPU has TM feature · torvalds/linux@c1fa076 · GitHub CONFIRM github.com Patch, Third Party Advisory
CVE-2018-1091 - Red Hat Customer Portal CONFIRM access.redhat.com Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 CONFIRM www.kernel.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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