Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
High
Attack Vector
Local
0

CVE-2019-19319

Disclosure Date: November 27, 2019
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.

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CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
5.9
Exploitability Score:
0.6
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • linux,
  • opensuse,
  • redhat

Products

  • enterprise linux 7.0,
  • enterprise linux 8.0,
  • leap 15.1,
  • linux kernel 5.0.21
Technical Analysis