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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.4006 Security update for the Linux Kernel 12 August 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2022-36946 CVE-2022-33742 CVE-2022-33741 CVE-2022-33740 CVE-2022-26365 CVE-2022-20166 CVE-2022-2318 CVE-2022-1462 CVE-2021-39713 CVE-2021-33656 CVE-2021-33655 CVE-2020-36558 CVE-2020-36557 CVE-2020-15393 Original Bulletin: https://www.suse.com/support/update/announcement/2022/suse-su-20222721-1 Comment: CVSS (Max): 7.8 CVE-2021-33655 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2022:2721-1 Rating: important References: #1173514 #1196973 #1198829 #1200598 #1200762 #1200910 #1201251 #1201429 #1201635 #1201636 #1201742 #1201752 #1201930 #1201940 Cross-References: 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 Affected Products: SUSE Linux Enterprise Server 12-SP2-BCL ______________________________________________________________________________ An update that fixes 14 vulnerabilities is now available. Description: The SUSE Linux Enterprise 12 kernel was updated to receive various security bugfixes. The following security bugs were fixed: o CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940). o CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598). o CVE-2020-15393: Fixed a memory leak in the usbtest driver which could lead to denial of service (bnc#1173514). o CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc# 1200910). o 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). o CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636). o CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635). o CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc# 1198829). o CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762). o CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc #1201251). o CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free (bnc#1196973). The following non-security bugs were fixed: o kvm: emulate: Do not adjust size of fastop and setcc subroutines (bsc# 1201930). o kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930). Special Instructions and Notes: Please reboot the system after installing this update. Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: o SUSE Linux Enterprise Server 12-SP2-BCL: zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-2721=1 Package List: o SUSE Linux Enterprise Server 12-SP2-BCL (x86_64): kernel-default-4.4.121-92.181.1 kernel-default-base-4.4.121-92.181.1 kernel-default-base-debuginfo-4.4.121-92.181.1 kernel-default-debuginfo-4.4.121-92.181.1 kernel-default-debugsource-4.4.121-92.181.1 kernel-default-devel-4.4.121-92.181.1 kernel-syms-4.4.121-92.181.1 o SUSE Linux Enterprise Server 12-SP2-BCL (noarch): kernel-devel-4.4.121-92.181.1 kernel-macros-4.4.121-92.181.1 kernel-source-4.4.121-92.181.1 References: o https://www.suse.com/security/cve/CVE-2020-15393.html o https://www.suse.com/security/cve/CVE-2020-36557.html o https://www.suse.com/security/cve/CVE-2020-36558.html o https://www.suse.com/security/cve/CVE-2021-33655.html o https://www.suse.com/security/cve/CVE-2021-33656.html o https://www.suse.com/security/cve/CVE-2021-39713.html o https://www.suse.com/security/cve/CVE-2022-1462.html o https://www.suse.com/security/cve/CVE-2022-20166.html o https://www.suse.com/security/cve/CVE-2022-2318.html o https://www.suse.com/security/cve/CVE-2022-26365.html o https://www.suse.com/security/cve/CVE-2022-33740.html o https://www.suse.com/security/cve/CVE-2022-33741.html o https://www.suse.com/security/cve/CVE-2022-33742.html o https://www.suse.com/security/cve/CVE-2022-36946.html o https://bugzilla.suse.com/1173514 o https://bugzilla.suse.com/1196973 o https://bugzilla.suse.com/1198829 o https://bugzilla.suse.com/1200598 o https://bugzilla.suse.com/1200762 o https://bugzilla.suse.com/1200910 o https://bugzilla.suse.com/1201251 o https://bugzilla.suse.com/1201429 o https://bugzilla.suse.com/1201635 o https://bugzilla.suse.com/1201636 o https://bugzilla.suse.com/1201742 o https://bugzilla.suse.com/1201752 o https://bugzilla.suse.com/1201930 o https://bugzilla.suse.com/1201940 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBYvWxN8kNZI30y1K9AQgAEw//R/8gDz5hFPiBHhgHI9MBSkyv/OSeh3Ek leNvarjDAKCzJ2/06dHEo4EjrnuYzT0Joqc3poPLcg0Q8KQCyWbmmHbpX2j6kMtt 4UKOQtuy7Buz8yfPyMP7yuCv70CEvi+CGCoYcQRx8KyiOLOiYtCY1/sNxI+tDaJb nGjqa1amVbFI/HuouZBUnJBohVGv1qYP66CQ2sT7Nx96OFfRlGjlPTiT9p4NvBN7 MQ1srC+ywVPUJM7GHzB99XLCqw3NZzMCDmrItV1PjH2mVGj3+UyeoVoE33IEUfBc 3Mrp6ezNSAZfDyoGncOWkLQURUW0y7pUfeg9518K3YW+l8bpnNye7MuHehb7jgbj QAwoWP3uQMkTqITOcc0Ds3N4tVGjijQO5fW1beuXNVxToa+TmoKm+RJbMT2NsQ5T h/KTjUiTgJ2M2clEF2aj9utIo+hYnXDrH9U7hybh9KZbTsE3q1BB6GAxq0l2yW7T kI7R+l0dNIWH1UwOvdthO6Kr4iojTaHWZs64vlKD2maTI9c0f4MySQ5MnkNPouUn DKb8VWlsK1brzaCnMrinjJAg1e6g8IGT2NrTXwIAk6eGhnE1y9u9iKs5lZDJupxB 1QpN/A787YtcQODTqJsyhADpwzh1vItCUK359GH186rVyDBjajZlUGDmDec1m99w ymy4dVaSbss= =0jWU -----END PGP SIGNATURE-----