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SUSE Linux 15 SP4: Security Update 2022:2722-1 Important: Kernel Issues

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Calendar Grey August 9, 2022
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SUSE has rolled out a Security Update that mitigates several vulnerabilities in the Linux Kernel, tackling severe weaknesses that could allow for privilege escalation.
An update that solves 5 vulnerabilities, contains 9 features and has 31 fixes is now available

Summary

The SUSE Linux Enterprise 15 SP4 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-21505: Fixed kexec lockdown bypass with IMA policy (bsc#1201458). - CVE-2022-29581: Fixed improper update of Reference Count in net/sched that could cause root privilege escalation (bnc#1199665). - CVE-2022-32250: Fixed an use-after-free bug in the netfilter subsystem. This flaw allowed a local attacker with user access to cause a privilege escalation issue (bnc#1200015, bnc#1200494). The following non-security bugs were fixed:

Topics%20covered

Topics Covered

security advisory privilege escalation security fix vulnerability kernel SUSE important severity

References

#1190256 #1190497 #1198410 #1198829 #1199086

#1199291 #1199364 #1199665 #1199670 #1200015

#1200465 #1200494 #1200644 #1200651 #1201258

#1201323 #1201381 #1201391 #1201427 #1201458

#1201471 #1201524 #1201592 #1201593 #1201595

#1201596 #1201635 #1201651 #1201675 #1201691

#1201705 #1201725 #1201846 #1201930 #1201954

#1201958 SLE-18130 SLE-20183 SLE-21132 SLE-24569

SLE-24570 SLE-24571 SLE-24578 SLE-24635 SLE-24682

Cross- CVE-2021-33655 CVE-2022-1462 CVE-2022-21505

CVE-2022-29581 CVE-2022-32250

CVSS scores:

CVE-2021-33655 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33655 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1462 (NVD) : 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2022:2722-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation security fix vulnerability kernel SUSE important severity

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