Vulnerability in Linux Kernel

CVE-2019-13648

In the Linux kernel through 5.2.1 on the powerpc platform, when hardware transactional memory is disabled, a local user can cause a denial of service (TM Bad Thing exception and system crash) via a sigreturn() system call that sends a crafted signal frame. This affects arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c.

EPSS: 0.006 (44.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-13648?
CVE-2019-13648 is a medium-severity vulnerability in Linux Kernel, classified under CWE-399. CVSS score: 5.5/10. Published 2019-07-19.
How severe is CVE-2019-13648?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2019-13648 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.