Maple Labs

CVE search · CVE-2021-3733

CVE-2021-3733

medium 6.5

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.

Open in the NVD CVE.org JSON

Details

Status
Modified
Published
Last changed
Source
secalert@redhat.com
Weakness
CWE-400

Severity

VersionScoreVectorSource
CVSS 3.1 medium 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H nvd@nist.govPrimary
CVSS 2.0 medium 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P nvd@nist.govPrimary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

  • python · python
  • redhat · codeready_linux_builder
  • redhat · codeready_linux_builder_for_ibm_z_systems
  • redhat · codeready_linux_builder_for_power_little_endian
  • redhat · enterprise_linux
  • redhat · enterprise_linux_eus
  • redhat · enterprise_linux_for_ibm_z_systems
  • redhat · enterprise_linux_for_ibm_z_systems_eus
  • redhat · enterprise_linux_for_power_little_endian
  • redhat · enterprise_linux_for_power_little_endian_eus
  • redhat · enterprise_linux_server_aus
  • redhat · enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
  • redhat · enterprise_linux_server_tus
  • redhat · enterprise_linux_server_update_services_for_sap_solutions
  • fedoraproject · extra_packages_for_enterprise_linux
  • fedoraproject · fedora
  • netapp · management_services_for_element_software_and_netapp_hci
  • netapp · ontap_select_deploy_administration_utility
  • netapp · solidfire,_enterprise_sds_&_hci_storage_node
  • netapp · hci_compute_node_firmware

References