VULNERABILITY INTELLIGENCE
CVE-2009-0748
CVSS score4.9 MEDIUM
EPSS probability0.51%
CISA KEVNot currently listed
Published2009-02-27
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:C
Description
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate the superblock configuration, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) by attempting to mount a crafted ext4 filesystem.
Weakness classification
- CWE-20: Improper Input Validation