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Status published
Medium
CVE-2019-19767
The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2
- https://bugzilla.kernel.org/show_bug.cgi?id=205707
- https://bugzilla.kernel.org/show_bug.cgi?id=205609
- https://github.com/torvalds/linux/commit/4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://usn.ubuntu.com/4258-1/
- https://usn.ubuntu.com/4287-1/
- https://usn.ubuntu.com/4287-2/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://usn.ubuntu.com/4284-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
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Affected Vendor
linux
View all reports →Affected Software
linux kernel
Vulnerable Versions:
0
Timeline
Official Publish:
December 12th, 2019
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.