Use of Uninitialized Resource Affecting linux-4.9 package, versions <4.9.168-1+deb9u3~deb8u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-DEBIAN8-LINUX49-450052
  • published15 May 2019
  • disclosed15 May 2019

Introduced: 15 May 2019

CVE-2019-11833  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Debian:8 linux-4.9 to version 4.9.168-1+deb9u3~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.9 package and not the linux-4.9 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

CVSS Base Scores

version 3.1