Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 598
Alerts This Week
Warning Icon 1 598

SUSE: 2021:2057-1 Important: Linux Kernel Critical Security Fix

suse
Calendar Grey June 18, 2021
Scroller Suse
The SUSE Security Update delivers essential patches for vulnerabilities in the Linux Kernel, aiming to bolster system security and maintain integrity.
An update that fixes four vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150_72 fixes several issues. The following security issues were fixed: - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484). - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060). - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory denial of service remote code execution important exploits linux kernel live patch

References

#1185899 #1186061 #1186285 #1186498

Cross- CVE-2021-23134 CVE-2021-32399 CVE-2021-33034

CVE-2021-33200

CVSS scores:

CVE-2021-23134 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23134 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-32399 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-32399 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33034 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33034 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVE-2021-33200 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33200 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:2057-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service remote code execution important exploits linux kernel live patch

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.