Debian Security Advisory

DLA-1863-1 linux-4.9 -- LTS security update

Date Reported:
27 Jul 2019
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2019-13272.
More information:

Jann Horn discovered that the ptrace subsystem in the Linux kernel mishandles the management of the credentials of a process that wants to create a ptrace relationship, allowing a local user to obtain root privileges under certain scenarios.

For Debian 8 Jessie, this problem has been fixed in version 4.9.168-1+deb9u4~deb8u1.

We recommend that you upgrade your linux-4.9 packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: