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 fu
Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3)
This update for the Linux Kernel 4.4.156-94_61 fixes several issues.
The following security issues were fixed:
- CVE-2019-9213: Expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bsc#1128378).
- CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124734).
- CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled
Security update for the Linux Kernel (Live Patch 17 for SLE 12 SP3)
This update for the Linux Kernel 4.4.155-94_50 fixes several issues.
The following security issues were fixed:
- CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bsc#1110233).
- CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash
The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.155 to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-13093: Prevent NULL pointer dereference and panic in lookup_slow()
on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image.
This occured because of a lack of proper validation that cached inodes are free
during allocation (bnc#1100001).
- CVE-2018-13095: Prevent denial of service (memory corruption and BUG) that
could have occurred for a corrupted xfs image upon encountering an inode that
is in extent format, but has more extents than fit in the inode fork