SUSE: 2022:2720-1 Important: 7 Kernel Security Fixes and More
suse
August 9, 2022
An update that solves 7 vulnerabilities and has 18 fixes is now available
Summary
The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940). - CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598). - CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs could lead to a use-after-free (bnc#1201429). - CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
References
#1103269 #1114648 #1190812 #1195775 #1195926
#1198484 #1198829 #1200442 #1200598 #1200644
#1200651 #1200910 #1201196 #1201381 #1201429
#1201635 #1201636 #1201644 #1201651 #1201742
#1201752 #1201930 #1201940 #1201954 #1201958
Cross- CVE-2020-36557 CVE-2020-36558 CVE-2021-33655
CVE-2021-33656 CVE-2022-1462 CVE-2022-20166
CVE-2022-36946
CVSS scores:
CVE-2020-36557 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-36557 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-36558 (NVD) : 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2020-36558 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
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Announcement ID: SUSE-SU-2022:2720-1
Rating: important
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