SUSE: 2021:3401-1 important: the Linux Kernel (Live Patch 23 for SLE 15)
Summary
This update for the Linux Kernel 4.12.14-150_69 fixes several issues. The following security issues were fixed: - CVE-2021-3715: Fixed a user-after-free in the Linux kernel's Traffic Control networking subsystem which could lead to local privilege escalation. (bsc#1190350). - CVE-2021-38160: Fixed a bug that could lead to a data corruption or loss. This can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size in drivers/char/virtio_console.c (bsc#1190118) - CVE-2021-3640: Fixed a user-after-free bug in the function sco_sock_sendmsg which could lead to local privilege escalation. (bsc#1188613) - CVE-2021-3573: Fixed a user-after-free bug in the function hci_sock_bound_ioctl which could lead to local privilege escalation. (bsc#1187054). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Module for Live Patching 15: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-3401=1 Package List: - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64): kernel-livepatch-4_12_14-150_69-default-10-2.2 kernel-livepatch-4_12_14-150_69-default-debuginfo-10-2.2
References
#1187054 #1188613 #1190118 #1190350
Cross- CVE-2021-3573 CVE-2021-3640 CVE-2021-3715
CVE-2021-38160
CVSS scores:
CVE-2021-3573 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3640 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3715 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-38160 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15
https://www.suse.com/security/cve/CVE-2021-3573.html
https://www.suse.com/security/cve/CVE-2021-3640.html
https://www.suse.com/security/cve/CVE-2021-3715.html
https://www.suse.com/security/cve/CVE-2021-38160.html
https://bugzilla.suse.com/1187054
https://bugzilla.suse.com/1188613
https://bugzilla.suse.com/1190118
https://bugzilla.suse.com/1190350