Virtuozzo 7 : readykernel-patch (VZA-2017-032)
Medium Nessus Plugin ID 99732
SynopsisThe remote Virtuozzo host is missing a security update.
DescriptionAccording to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :
- A vulnerability was found in the Linux kernel where having malicious IP options present would cause the ipv4_pktinfo_prepare() function to drop/free the dst.
This could result in a system crash or possible privilege escalation.
- A vulnerability was found in the implementation of SCTP protocol in the Linux kernel. If the sctp module was loaded on the host, a privileged user inside a container could cause a kernel crash by triggering use-after-free in the __sctp_connect() function with a specially crafted sequence of system calls.
Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the readykernel patch.