QwikSec

Security Database

CVE

CWE

Training

CVE-2018-1091

Published: Mar 27, 2018

Modified: Aug 5, 2024

PUBLISHED

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.

Vendor	Product	Versions
n/a	Linux kernel v4.13 and newer	affected `Linux kernel v4.13 and newer`

Weaknesses (CWE)

References

https://bugzilla.redhat.com/show_bug.cgi?id=1558149

x_refsource_CONFIRM

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5

x_refsource_CONFIRM

https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2

x_refsource_CONFIRM

https://access.redhat.com/security/cve/cve-2018-1091

x_refsource_CONFIRM

vendor-advisory

x_refsource_REDHAT

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70

x_refsource_CONFIRM

https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70

x_refsource_CONFIRM

http://openwall.com/lists/oss-security/2018/03/27/4

x_refsource_CONFIRM

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.