Description
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
Affected Platforms
Redhat Codeready Linux Builder For Ibm Z SystemsNetapp Solidfire\, Enterprise Sds \& Hci Storage NodeRedhat Enterprise Linux For Ibm Z Systems EusNetapp Ontap Select Deploy Administration UtilityRedhat Enterprise Linux EusRedhat Codeready Linux Builder For Power Little EndianRedhat Enterprise Linux Server TusRedhat Enterprise LinuxRedhat Enterprise Linux For Power Little EndianFedoraproject Extra Packages For Enterprise Linux