QID 750868

Date Published: 2021-07-22

QID 750868: SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:2427-1)

The suse linux enterprise 15 sp3 kernel was updated to receive various security and bugfixes.
the following security bugs were fixed: - cve-2021-22555: fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation.
(bsc#1188116) - cve-2021-33624: fixed a bug which allows unprivileged bpf program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (
Bsc#1187554) - cve-2021-0605: fixed an out-of-bounds read which could lead to local information disclosure in the kernel with system execution privileges needed. (
Bsc#1187601) - cve-2021-0512: fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (
Bsc#1187595) - cve-2020-26558: fixed a flaw in the bluetooth le and br/edr secure pairing that could permit a nearby man-in-the-middle attacker to identify the passkey used during pairing. (
Bnc#1179610) - cve-2021-34693: fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (
Bsc#1187452) - cve-2021-0129: fixed an improper access control in bluez that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (
Bnc#1186463) - cve-2020-36386: fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (
Bsc#1187038) - cve-2020-24588: fixed a bug that could allow an adversary to abuse devices that support receiving non-ssp a-msdu frames to inject arbitrary network packets. (
Bsc#1185861 bsc#1185863) - cve-2021-33909: fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (
Bsc#1188062) - cve-2021-3609: fixed a race condition in the can bcm networking protocol which allows for local privilege escalation. (
Bsc#1187215) - cve-2020-36385: fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (
Bsc#1187050) - cve-2021-33200: fix leakage of uninitialized bpf stack under speculation. (

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 7.2 severity.
  • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:2427-1 to address this issue and obtain further details.
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:2427-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-July/009190.html