CVE-2020-14422

Description

Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.

How to fix CVE-2020-14422

To remediate CVE-2020-14422, upgrade the affected package to a fixed version below.

• —upgrade to 3.7.7-r1 or later
• —upgrade to 3.5.10 or later
• —upgrade to 3.5.10 or later
• —upgrade to 3.5.10 or later
• —no fix listed
• —upgrade to 1.0.17-1+deb10u1 or later

Is CVE-2020-14422 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• from 0, < 3.7.7-r1
• >= 3.0.0, < 3.5.10, >= 3.6.0, < 3.6.12, >= 3.7.0, < 3.7.9, >= 3.8.0, < 3.8.4
• >= 3.0.0, < 3.5.10, >= 3.6.0, < 3.6.12, >= 3.7.0, < 3.7.9, >= 3.8.0, < 3.8.4
• >= 3.0.0, < 3.5.10, >= 3.6.0, < 3.6.12, >= 3.7.0, < 3.7.9, >= 3.8.0, < 3.8.4
• from 0
• from 0, < 1.0.17-1+deb10u1

CVSS scores

References (27)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2020-14422
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-14422
• WEBlists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html
• WEBlists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html