RHSA-2017:0345: Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer) resources for a DCCPPKTREQUEST packet when the IPV6RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system. (CVE-2017-6074, Important) Red Hat would like to thank Andrey Konovalov (Google) for reporting this issue.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2017:0345?
The severity of RHSA-2017:0345 is classified as important.
How do I fix RHSA-2017:0345?
To fix RHSA-2017:0345, update the kernel package to version 2.6.32-358.77.1.el6 or later.
What systems are affected by RHSA-2017:0345?
Systems running the Linux kernel version below 2.6.32-358.77.1.el6 are affected by RHSA-2017:0345.
What type of vulnerability is described in RHSA-2017:0345?
RHSA-2017:0345 describes a use-after-free vulnerability in the Linux kernel's DCCP implementation.
Is there an exploit for RHSA-2017:0345?
Exploiting the vulnerability in RHSA-2017:0345 could allow an attacker to execute arbitrary code, though specific exploit details are not publicly available.