Information Exposure Affecting iptables package, versions [,1.2.4)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.4% (32nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-IPTABLES-2318978
  • published14 Dec 2021
  • disclosed5 Nov 2001
  • creditUnknown

Introduced: 5 Nov 2001

CVE-2001-1387  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade iptables to version 1.2.4 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure iptables-save in iptables before 1.2.4 records the "--reject-with icmp-host-prohibited" rule as "--reject-with tcp-reset," which causes iptables to generate different responses than specified by the administrator, possibly leading to an information leak.

References

CVSS Base Scores

version 3.1