medium
5.5
CWE
399
Advisory Published
CVE Published
Updated

CVE-2016-3156

First published: Wed Mar 16 2016(Updated: )

Destroy of network interface with huge number of ipv4 addresses keeps rtnl_lock for a very long time (up to hour). It blocks many network related operations, including for example creation of new incoming ssh connections. The problem is especially important for containers, container owner have enough permission to enable this trigger and then can block network access on whole host node. Upstream fix: <a href="http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=fbd40ea0180a2d328c5adc61414dc8bab9335ce2">http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=fbd40ea0180a2d328c5adc61414dc8bab9335ce2</a> References: <a href="http://seclists.org/oss-sec/2016/q1/643">http://seclists.org/oss-sec/2016/q1/643</a> CVE assignment: <a href="http://seclists.org/oss-sec/2016/q1/647">http://seclists.org/oss-sec/2016/q1/647</a>

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Novell Suse Linux Enterprise Software Development Kit=11.0-sp4
Novell Suse Linux Enterprise Software Development Kit=12.0
Novell Suse Linux Enterprise Debuginfo=11.0-sp4
Novell Suse Linux Enterprise Desktop=12.0
Novell Suse Linux Enterprise Live Patching=12.0
Novell Suse Linux Enterprise Module For Public Cloud=12.0
Novell Suse Linux Enterprise Real Time Extension=11.0-sp4
Novell Suse Linux Enterprise Real Time Extension=12.0-sp1
Novell Suse Linux Enterprise Server=11.0-extra
Novell Suse Linux Enterprise Server=11.0-sp4
Novell Suse Linux Enterprise Server=12.0
Novell Suse Linux Enterprise Workstation Extension=12.0
Canonical Ubuntu Linux=12.04
Linux Linux kernel<=4.5.1
debian/linux
5.10.223-1
6.1.106-3
6.1.99-1
6.10.9-1

Remedy

https://github.com/torvalds/linux/commit/fbd40ea0180a2d328c5adc61414dc8bab9335ce2

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