Use After Free Affecting kernel-cross-headers package, versions <0:4.18.0-240.el8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-3814233
- published 26 Jul 2021
- disclosed 10 Dec 2019
Introduced: 10 Dec 2019
CVE-2019-19447 Open this link in a new tabHow 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.
In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.
References
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://access.redhat.com/security/cve/CVE-2019-19447
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://access.redhat.com/errata/RHSA-2020:4431
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html