CVE-2018-1095

5.5MEDIUM

Key Information:

Vendor
Linux
Status
Linux Kernel Through Version 4.15
Vendor
CVE Published:
2 April 2018

Summary

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.

Affected Version(s)

Linux kernel through version 4.15 Linux kernel through version 4.15

References

https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext...
x_refsource_MISC
http://openwall.com/lists/oss-security/2018/03/29/1
x_refsource_MISC
https://usn.ubuntu.com/3695-1/
vendor-advisoryx_refsource_UBUNTU

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.