An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HFedora Project Fedora
OSFedoraproject353637Netapp Active Iq Unified Manager
APPNetappall versionsNetapp Bootstrap Os
OSNetappall versionsNetapp Element Software
APPNetappall versionsNetapp E Series Performance Analyzer
APPNetappall versionsNetapp Hci
APPNetappall versionsNetapp Hci Compute Node
HWNetappall versionsNetapp Management Services For Element Software
APPNetappall versionsNetapp Ontap Select Deploy Administration Utility
APPNetappall versionsPython
APPPython3.11.03.10.0 – 3.10.83.9.0 – 3.9.153.8.0 – 3.8.15≤ 3.7.15
Related vulnerabilities
Apache Tomcat: Path Equivalence prowadzący do RCE i ujawnienia danych
PHP CGI argument injection – RCE na Windows przez mechanizm Best-Fit
Type Confusion w V8 (Google Chrome) — RCE przez spreparowaną stronę HTML
Type Confusion w silniku V8 Chrome — zdalne wykonanie kodu (RCE)
Use-after-free w Google Chrome Visuals umożliwiający ucieczkę z sandbox