SUSE-SU-2019:1671-1: kgraft-patch-SLE12-SP2_Update_23&distro=SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise

Vulnerability summary

SUSE-SU-2019:1671-1 is a vulnerability in kgraft-patch-SLE12-SP2_Update_23&distro=SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise with no CVSS score yet.

Timeline

1. 21-06-2019
   PublishedVulnerability first disclosed.
2. 04-02-2026
   Last modifiedVulnerability information updated.

Description

Security update for the Linux Kernel (Live Patch 27 for SLE 12 SP2) This update for the Linux Kernel 4.4.121-92_101 fixes several issues. The following security issues were fixed: - CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446). - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586). - CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. (bsc#1137586) - CVE-2019-11487: The Linux kernel allowed page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191).

No weakness data has been published for this record.