ELA-151-1 linux security update

Linux Kernel update

Related CVEs CVE-2019-2101 CVE-2019-10639 CVE-2019-13272

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.


Andrey Konovalov discovered that the USB Video Class driver
(uvcvideo) did not consistently handle a type field in device
descriptors, which could result in a heap buffer overflow.  This
could be used for denial of service or possibly for privilege


Amit Klein and Benny Pinkas discovered that the generation of IP
packet IDs used a weak hash function that incorporated a kernel
virtual address.  In Linux 3.16 this hash function is not used for
IP IDs but is used for other purposes in the network stack.  In
custom kernel configurations that enable kASLR, this might weaken


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.

This update also fixes a regression introduced by the original fix for CVE-2019-11478 (#930904), and includes other fixes from upstream stable updates.

For Debian 7 Wheezy, these problems have been fixed in version 3.16.70-1~deb7u1.

We recommend that you upgrade your linux packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.