Use After Free Affecting kernel package, versions <0:4.14.158-129.185.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-7172605
- published 31 May 2024
- disclosed 12 Dec 2019
Introduced: 12 Dec 2019
CVE-2019-19767 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.158-129.185.amzn2 or higher.
This issue was patched in ALAS2-2024-2560.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19767
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://bugzilla.kernel.org/show_bug.cgi?id=205609
- https://bugzilla.kernel.org/show_bug.cgi?id=205707
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
- https://github.com/torvalds/linux/commit/4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4258-1/
- https://usn.ubuntu.com/4284-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/