Out-of-Bounds Affecting iptables package, versions <1.8.3-2


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.18% (56th percentile)

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  • Snyk ID SNYK-DEBIAN11-IPTABLES-518456
  • published 24 Jul 2019
  • disclosed 12 Jul 2019

How to fix?

Upgrade Debian:11 iptables to version 1.8.3-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream iptables package and not the iptables package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A buffer overflow in iptables-restore in netfilter iptables 1.8.2 allows an attacker to (at least) crash the program or potentially gain code execution via a specially crafted iptables-save file. This is related to add_param_to_argv in xshared.c.

CVSS Scores

version 3.1
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NVD

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

4.2 medium