CVE-2020-14422
MEDIUM severity · CVSS 5.9 · CWE-330
5.9CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://bugs.python.org/issue41004Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00032.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00041.htmlAdvisory
- https://github.com/python/cpython/pull/20956Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00016.html