CVE-2018-1095

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.

CVSS v3.0

5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS

1.46% chance of exploitation in the next 30 days, 72th percentile

Published

2018-04-02

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.kernel.org/show_bug.cgi?id=199185

References

• CVE Record
• NVD entry

Related

• CVE-2018-10949
• CVE-2018-10952
• CVE-2018-10942
• CVE-2018-10953
• CVE-2018-1094
• CVE-2018-10954