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Alerts This Week
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SUSE: 2021:3440-1 Important: Kernel Patch Local Privilege Escalation

suse
Calendar Grey October 14, 2021
Scroller Suse
Tackling critical security concerns in SUSE's Linux Kernel through resolutions for weaknesses in Live Patch version 22.
An update that fixes four vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150_66 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:

Topics%20covered

Topics Covered

security advisory local privilege escalation kernel patch SUSE data corruption live patching

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
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Critical

Announcement ID: SUSE-SU-2021:3440-1
Rating: important

Topics%20covered

Topics Covered

security advisory local privilege escalation kernel patch SUSE data corruption live patching

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