Memory Leak Affecting kernel-cross-headers package, versions <0:4.18.0-240.el8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-3821058
- published 26 Jul 2021
- disclosed 18 Nov 2019
How to fix?
Upgrade RHEL:8 kernel-cross-headers to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of this because an attacker cannot realistically control this failure at probe time
References
- https://access.redhat.com/security/cve/CVE-2019-19046
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/
- https://bugzilla.suse.com/show_bug.cgi?id=1157304
- https://github.com/torvalds/linux/commit/4aa7afb0ee20a97fbf0c5bab3df028d5fb85fdab
- https://access.redhat.com/errata/RHSA-2020:4431
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- https://usn.ubuntu.com/4302-1/
- https://usn.ubuntu.com/4319-1/
- https://usn.ubuntu.com/4325-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/