QID 750031

QID 750031: SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 22 for SLE 15) (SUSE-SU-2021:1728-1)

This update for the linux kernel 4.12.14-150_66 fixes several issues.
the following security issues were fixed: - cve-2020-36322: fixed an issue inside the fuse filesystem implementation where fuse_do_getattr() calls make_bad_inode() in inappropriate situations, could have caused a system crash.
Note: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as cve-2021-28950 (bsc#1184952).
- cve-2020-0433: fixed blk_mq_queue_tag_busy_iter of blk-mq-tag.c, where a possible use after free due to improper locking could have happened.
this could have led to local escalation of privilege with no additional execution privileges needed.
User interaction is not needed for exploitation (bnc#1178066).
- cve-2021-29154: fixed bpf jit compilers that allowed to execute arbitrary code within the kernel context (bsc#1184710)

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-2021:1728-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 750031

    CVE-2021-28950 | CVE-2021-29154 | CVE-2020-0433 | CVE-2020-36322 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:1728-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-May/008814.html
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