Out-of-bounds Write Affecting linux-4.19 package, versions <4.19.160-2~deb9u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-1013382
  • published17 Dec 2019
  • disclosed17 Dec 2019

Introduced: 17 Dec 2019

CVE-2019-19816  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:9 linux-4.19 to version 4.19.160-2~deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.19 package and not the linux-4.19 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c, because a value of 1 for the number of data stripes is mishandled.

CVSS Base Scores

version 3.1