Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.1169 kpatch-patch-4_18_0-147_58_1 security and bug fix update 18 March 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kpatch-patch-4_18_0-147_58_1 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-22942 CVE-2022-0492 CVE-2022-0330 CVE-2021-4155 CVE-2021-4083 CVE-2021-4028 CVE-2021-0920 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:0958 Comment: CVSS (Max): 7.4 CVE-2021-4083 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch-4_18_0-147_58_1 security and bug fix update Advisory ID: RHSA-2022:0958-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:0958 Issue date: 2022-03-17 CVE Names: CVE-2021-0920 CVE-2021-4028 CVE-2021-4083 CVE-2021-4155 CVE-2022-0330 CVE-2022-0492 CVE-2022-22942 ===================================================================== 1. Summary: An update for kpatch-patch-4_18_0-147_58_1 is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux BaseOS E4S (v. 8.1) - ppc64le, x86_64 3. Description: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920) * kernel: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) * kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155) * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330) * kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492) * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Several kpatch CVEs needed for kernel-4.18.0-147.58.1.el8_1 (BZ#2064297) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen() 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it 2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation 2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL 2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush 2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation 2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation 6. Package List: Red Hat Enterprise Linux BaseOS E4S (v. 8.1): Source: kpatch-patch-4_18_0-147_58_1-1-1.el8_1.src.rpm ppc64le: kpatch-patch-4_18_0-147_58_1-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.ppc64le.rpm x86_64: kpatch-patch-4_18_0-147_58_1-1-1.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_58_1-debuginfo-1-1.el8_1.x86_64.rpm kpatch-patch-4_18_0-147_58_1-debugsource-1-1.el8_1.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-0920 https://access.redhat.com/security/cve/CVE-2021-4028 https://access.redhat.com/security/cve/CVE-2021-4083 https://access.redhat.com/security/cve/CVE-2021-4155 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-22942 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYjOjhdzjgjWX9erEAQjh/A//cstCVD/y2wO4KI5JvYDWBpDm5ZopA5gV 8kV0vASUWROfwsCMfAPh3X3daaUM9TwPMfvSDhPrEEI8A0KwfJOgd8lDfDIno5Jv fRxxsUaBYrKlPYmaZO87okkknSEheuj5Q/x3oW/pQrbLQQggNtCJIroXFcpHhofc t0Yvuu3s/E1AeX60jHhyM6ctzrmnW+Puo09NqyyEa90LDzDeiSVVNuHsSS0oSSkQ MDHgMufTLhZ4R5Edhxh1NLK00CzWO/4r2EOl8GF3/YbnbbqotldmDqvowrYqD6Bs /q6IryCHhBSIcaWJQ8P4kFoyTAOYBU5jMOch7Xb+AIRvejk7PIpXnYVLPDhW9TO0 3Y92oDUIUbQOcO1X9X5jshnQYfzKj88C2REouvcDYbbOHzc7WS5gfPUlhSjZITgL wa2FC0xe7GXe+rm9J3HCAStkQvRB1YPi1tYGcX8AVnZset46yCv+admWrB24qqUz rBEez4IJHKtJkQJ/bR/3+0/puEHENd7uTuduZ9TqIRZHExipVCD7irPs5t+NvwQ2 AKPBjXCWiSGzgEQAQiVIszgdNDwn+ge2Hj1AKx9r/dTgn1S8I7s3zikufbN0Y6LQ d/Whzs7tyGLys+KFzMuMNEqL5yYoTY7+6coXHQn1RkF92PFKmSzBfIJFAZvSsHoG QTT7fPRtZqs= =/SNg - -----END PGP SIGNATURE----- - --------------------------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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYjQe2+NLKJtyKPYoAQjNKw/+PqYHfZWg8ZVBUmW7kwlbhX98RA7ttCGU cs5ekf+5hKFZI6pjksFJqo1XH4KarXgsC1baVUJWEy6Nj3X+uguv0lC8OPBIBbsw cmzEkigSn4nJbI4tr+7YehB2fYuoRfdefomXyWj44nJRnBjcqVjfNHpPj+hSQ7J0 GkE5hXuuWEfBuD480lU+SOG31/Zxr1n47s/kcGuZNQftxnQ2I298xBeKc7vb8fkl sqH7jwzVcXaIABtkeFErfNdO5u8wD0Y/wdgxjdf/bZfLVKPGlEha6aX1HhnO4SWS aOBe1unqzueulOEKr3ZJPqfKIBbImxSKZPJZMnE0mSDwWkwLcTJYOujoURdPfdij W9Rl7KJ3puhWhqfXg/a5rM766dtzfgPLxE2w8uvtguHy1rGyztNRJ1i8Iw8nUSen o2F4f3rWvR0cfcLDfejDw1DRSiji+3G0VfzdQ5Vc7OkZJEMHFnqLhtSWfGin+eNs HJs2ek8Mrf9RQKnJzeaO7yUrG7GLiqLNxfALJb2FQ950Xg2L0Kled1SEyxUyVXUB FJGFihiIE2AT8IY2QdRC5JsRZzIYIWYPf9Auew51yUs1RHYlyc4BfOxgbpg/4h6a VvtfvfzrimEvm+uDXUJCPKtcHnP5FDETprXQEd1TooMbH1zIyQt5xwylqD45iOgv QlOJ3UY1Y6g= =50M/ -----END PGP SIGNATURE-----