SUSE Linux Enterprise 12-SP3: 2022:2840-1 Important Kernel Update
suse
August 18, 2022
An update that fixes 14 vulnerabilities is now available
Summary
The SUSE Linux Enterprise 12 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-15393: CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514). - CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429). - CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910). - CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). - CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636). - CVE-2021-39713: Fixed a race condition in the network scheduling
Topics Covered
References
#1173514 #1196973 #1198829 #1200598 #1200762
#1200910 #1201251 #1201429 #1201635 #1201636
#1201930 #1201940
Cross- CVE-2020-15393 CVE-2020-36557 CVE-2020-36558
CVE-2021-33655 CVE-2021-33656 CVE-2021-39713
CVE-2022-1462 CVE-2022-20166 CVE-2022-2318
CVE-2022-26365 CVE-2022-33740 CVE-2022-33741
CVE-2022-33742 CVE-2022-36946
CVSS scores:
CVE-2020-15393 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2020-15393 (SUSE): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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
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Severity
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Announcement ID: SUSE-SU-2022:2840-1
Rating: important
Topics Covered
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