CVE-2019-19319
linux - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.44%
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.
How to fix CVE-2019-19319
To remediate CVE-2019-19319, upgrade the affected package to a fixed version below.
- —upgrade to 5.2.6-1 or later
- —upgrade to 4.9.210-1+deb9u1 or later
- —upgrade to 4.9.210-1+deb9u1~deb8u1 or later
Is CVE-2019-19319 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.2.6-1
- from 0, < 4.9.210-1+deb9u1
- from 0, < 4.9.210-1+deb9u1~deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |