CVE-2019-19767

· MEDIUMModified

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CVSS v3.1

5.5

EPSS

2.08%

Published

Dec 12, 2019

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-416

Affected Products (1)

linux · linux_kernel (up to 5.4.2)vulnerable

References (20)

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html

https://bugzilla.kernel.org/show_bug.cgi?id=205609

ExploitIssue TrackingVendor Advisory

https://bugzilla.kernel.org/show_bug.cgi?id=205707

Issue TrackingVendor Advisory

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2

Release NotesVendor Advisory

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a

PatchVendor Advisory

https://github.com/torvalds/linux/commit/4ea99936a1630f51fc3a2d61a58ec4a1c4b7d55a

PatchThird Party Advisory

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/