SUSE-SU-2018:3880-1

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SUSE-SU-2018:3880-1

Summary: Security update for the Linux Kernel (Live Patch 0 for SLE 15)

Details: This update for the Linux Kernel 4.12.14-23 fixes several issues. The following security issues were fixed: - CVE-2018-5391: Fixed a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may have caused a denial of service condition by sending specially crafted IP fragments. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098). - CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bsc#1112039).

References: https://www.suse.com/support/update/announcement/2018/suse-su-20183880-1/, https://bugzilla.suse.com/1103098, https://bugzilla.suse.com/1112039, https://www.suse.com/security/cve/CVE-2018-18386, https://www.suse.com/security/cve/CVE-2018-5391