Race Condition Affecting kernel-livepatch-5_3_18-24_67-default package, versions <9-2.2
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Test your applications- Snyk ID SNYK-SLES152-KERNELLIVEPATCH53182467DEFAULT-3265335
- published 14 Apr 2022
- disclosed 16 Feb 2022
How to fix?
Upgrade SLES:15.2 kernel-livepatch-5_3_18-24_67-default to version 9-2.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_3_18-24_67-default package and not the kernel-livepatch-5_3_18-24_67-default package as distributed by SLES.
See How to fix? for SLES:15.2 relevant fixed versions and status.
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.
References
- https://www.suse.com/security/cve/CVE-2021-4202.html
- https://bugzilla.suse.com/1194529
- https://bugzilla.suse.com/1194533
- http://www.openwall.com/lists/oss-security/2022/06/01/2
- http://www.openwall.com/lists/oss-security/2022/06/04/2
- http://www.openwall.com/lists/oss-security/2022/06/07/2
- https://bugzilla.redhat.com/show_bug.cgi?id=2036682
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15
- https://security.netapp.com/advisory/ntap-20220513-0002/