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Buffer Overflow Affecting kernel-tools-devel package, versions <0:4.14.203-156.332.amzn2

Severity

 Recommended
high

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-1688591
  • published 27 Sep 2021
  • disclosed 9 Sep 2020
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Introduced: 9 Sep 2020

CVE-2020-25211 Open this link in a new tab
CWE-120 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.203-156.332.amzn2 or higher.
This issue was patched in ALAS2-2020-1556.

NVD Description

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

In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.

References

CVSS Scores

version 3.1
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NVD

6 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

6.7 medium
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SUSE

5.9 medium