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Use After Free Affecting kernel-debuginfo package, versions <0:4.14.55-68.37.amzn2

Severity

 Recommended
0.0
medium
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    3.11% (92nd percentile)

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  • Snyk ID SNYK-AMZN2-KERNELDEBUGINFO-1663316
  • published 27 Sep 2021
  • disclosed 24 May 2018
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Introduced: 24 May 2018

CVE-2018-11412 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel-debuginfo to version 0:4.14.55-68.37.amzn2 or higher.
This issue was patched in ALAS2-2018-1046.

NVD Description

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

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.