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.

CVSS breakdown

Affected products

• fedoraproject / fedora31 – 31
• fedoraproject / fedora32 – 32
• openSUSE / Leap15.1 – 15.1
• openSUSE / Leap15.2 – 15.2
• oracle / enterprise_manager_ops_center12.4.0.0 – 12.4.0.0
• Python / python3.0.0 – 3.5.10

References

• MISChttps://bugs.python.org/issue41004
• PATCHhttps://github.com/python/cpython/pull/20956
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2020/07/msg00011.html
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X36Y523UAZY5QFXZAAORNFY63HLBWX7N/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCCZTAYZATTNSNEAXWA7U3HCO2OVQKT5/
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00032.html
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00041.html
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT4AF72TJ2XNIKCR4WEBR7URBJJ4YZRD/
• VENDOR_ADVISORYhttps://usn.ubuntu.com/4428-1/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3TALOUBYU2MQD4BPLRTDQUMBKGCAXUA/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LE4O3PNDNNOMSKHNUKZKD3NGHIFUFDPX/
• MISChttps://security.gentoo.org/glsa/202008-01
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILCHHTNLH4GG4GSQBX2MZRKZBXOLCKE/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NTBKKOLFFNHG6CM4ACDX4APHSD5ZX5N4/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNHPQGSP2YM3JAUD2VAMPXTIUQTZ2M2U/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V53P2YOLEQH4J7S5QHXMKMZYFTVVMTMO/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CTUNTBJ3POHONQOTLEZC46POCIYYTAKZ/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36XI3EEQNMHGOZEI63Y7UV6XZRELYEAU/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OXI72HIHMXCQFWTULUXDG7VDA2BCYL4Y/
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujan2021.html
• MISChttps://security.netapp.com/advisory/ntap-20200724-0004/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/05/msg00016.html