CVE-2019-13648 Denial of service in n/a

What is CVE-2019-13648?

CVE-2019-13648 is a medium-severity denial of service vulnerability in Linux kernel, published on 19 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-399

Which versions are affected by CVE-2019-13648?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2019-13648?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-13648 being exploited?

There is no known exploitation of CVE-2019-13648 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-13648, GHSA-px2w-557r-c395, UBUNTU-CVE-2019-13648.