SUSE-SU-2019:0740-1
- Source
- https://www.suse.com/support/update/announcement/2019/suse-su-20190740-1/
- Import Source
- https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2019:0740-1.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/SUSE-SU-2019:0740-1
- Upstream
- Related
- Published
- 2019-03-26T13:34:42Z
- Modified
- 2026-03-11T07:07:09Z
- Summary
- Security update for the Linux Kernel (Live Patch 1 for SLE 15)
- Details
-
This update for the Linux Kernel 4.12.14-25_3 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-2019-8912: af_alg_release() in crypto/af_alg.c neglected to set a NULL value for a certain structure member, which could have led to a use-after-free in sockfs_setattr (bsc#1126284).
- CVE-2018-12232: In net/socket.c there was a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat did not increment the file descriptor reference count, which allowed close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash (bsc#1127757).
- 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 reference counting because of a race condition, leading to a use-after-free (bsc#1124729).
- References
-
- https://www.suse.com/support/update/announcement/2019/suse-su-20190740-1/
- https://bugzilla.suse.com/1124729
- https://bugzilla.suse.com/1124734
- https://bugzilla.suse.com/1126284
- https://bugzilla.suse.com/1127757
- https://bugzilla.suse.com/1128378
- https://www.suse.com/security/cve/CVE-2018-12232
- https://www.suse.com/security/cve/CVE-2019-6974
- https://www.suse.com/security/cve/CVE-2019-7221
- https://www.suse.com/security/cve/CVE-2019-8912
- https://www.suse.com/security/cve/CVE-2019-9213