CVE-2016-4470

The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.

Score

CVSS 3.0 5.5 Medium

Status

Modified - secalert@redhat.com

Published

2016-06-27

Last modified

2024-08-06

Affected products

• Linux Kernel (Linux)
• Suse Linux Enterprise Real Time Extension (Novell)
• Linux (Oracle)
• Vm Server (Oracle)
• Enterprise Linux (Redhat)
• Enterprise Linux Desktop (Redhat)
• Enterprise Linux For Real Time (Redhat)
• Enterprise Linux Hpc Node (Redhat)
• Enterprise Linux Hpc Node Eus (Redhat)
• Enterprise Linux Server (Redhat)
• Enterprise Linux Server Aus (Redhat)
• Enterprise Linux Server Eus (Redhat)
• Enterprise Linux Workstation (Redhat)
• Enterprise Mrg (Redhat)

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
• http://rhn.redhat.com/errata/RHSA-2016-1532.html
• http://rhn.redhat.com/errata/RHSA-2016-1539.html
• http://rhn.redhat.com/errata/RHSA-2016-1541.html
• http://rhn.redhat.com/errata/RHSA-2016-1657.html
• http://rhn.redhat.com/errata/RHSA-2016-2006.html
• http://rhn.redhat.com/errata/RHSA-2016-2074.html
• http://rhn.redhat.com/errata/RHSA-2016-2076.html
• http://rhn.redhat.com/errata/RHSA-2016-2128.html