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An important Linux kernel security update has been released for RHEL (Red Hat Enterprise Linux) 6 and CentOS 6 systems to address two vulnerabilities and a couple of bugs.
Red Hat Product Security team informs of a new, important Linux kernel security update for all supported Red Hat Enterprise Linux 6 products to address a buffer overflow issue (CVE-2019-17133) found in the generic WiFi ESSID handling implementation. This could allow a system to join a wireless network with an ESSID longer than 32 characters, which could crash the machine.
The second vulnerability (CVE-2019-17055) patched in this kernel update was found in Linux kernel’s AF_ISDN protocol implementation, which could allow unprivileged users to create a raw socket to control the availability of an existing ISDN circuit. The only mitigation for this flaw is blacklisting the kernel module from being loaded.
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