CVE-2019-19767

Sažetak

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.

Reference

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/

CVSS

Base:	4.3
Impact:	2.9
Exploitability:	8.6

Pristup

Vektor	Složenost	Autentikacija
NETWORK	MEDIUM	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	PARTIAL

CVSS vektor

AV:N/AC:M/Au:N/C:N/I:N/A:P

Zadnje važnije ažuriranje

03-01-2020 - 11:15

Objavljeno

12-12-2019 - 20:15