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Heap-based Buffer Overflow Affecting containernetworking-plugins package, versions <0:0.8.3-4.module+el8.1.1+5259+bcdd613a

Severity

 Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.36% (73rd percentile)

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  • Snyk ID SNYK-CENTOS8-CONTAINERNETWORKINGPLUGINS-2022164
  • published 26 Jul 2021
  • disclosed 7 Jan 2020
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Introduced: 7 Jan 2020

CVE-2020-7039 Open this link in a new tab
CWE-122 Open this link in a new tab

How to fix?

Upgrade Centos:8 containernetworking-plugins to version 0:0.8.3-4.module+el8.1.1+5259+bcdd613a or higher.

NVD Description

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

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

References

CVSS Scores

version 3.1
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NVD

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

5.6 medium
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SUSE

7 high