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SUSE: 2021:3401-1 Important: Kernel Security Fixes for Privilege Escalation

suse
Calendar Grey October 13, 2021
Dist Suse Esm H88
Red Hat unveils a critical patch release aimed at the Linux Kernel, tackling various vulnerabilities.
An update that fixes four vulnerabilities is now available

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:

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:3401-1
Rating: important

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