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Numeric Errors Affecting kernel package, versions <0:4.14.114-103.97.amzn2

Severity

 Recommended
high

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.06% (25th percentile)

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  • Snyk ID SNYK-AMZN2-KERNEL-1670066
  • published 27 Sep 2021
  • disclosed 1 Feb 2019
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Introduced: 1 Feb 2019

CVE-2019-7308 Open this link in a new tab
CWE-189 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel to version 0:4.14.114-103.97.amzn2 or higher.
This issue was patched in ALAS2-2019-1201.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.

References