CVE-2020-12826

Fixed in a distro release EPSS <1%

A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.

Published 2020-05-12 · CVE record · OSV

Products: linux_kernel, canonical ubuntu_linux, redhat enterprise_linux, redhat enterprise_mrg

Distro releases