Red Hat Security Advisory: kernel security and bug fix update

Important

An out-of-bounds write flaw was found in the Linux kernel’s HID drivers. An attacker, able to plug in a malicious USB device, can crash the system or read and write to memory with an incorrect address.

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.

CWE-330 - Use of Insufficiently Random Values