CVE-2021-3733

MEDIUM

6.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.16.5

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado3/10/2022

Ultima modificacion11/3/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

fedoraproject:extra_packages_for_enterprise_linuxfedoraproject:fedoranetapp:hci_compute_node_firmwarenetapp:management_services_for_element_software_and_netapp_hcinetapp:ontap_select_deploy_administration_utilitynetapp:solidfire\,_enterprise_sds_\&_hci_storage_nodepython:pythonredhat:codeready_linux_builderredhat:codeready_linux_builder_for_ibm_z_systemsredhat:codeready_linux_builder_for_power_little_endianredhat:enterprise_linuxredhat:enterprise_linux_eusredhat:enterprise_linux_for_ibm_z_systemsredhat:enterprise_linux_for_ibm_z_systems_eusredhat:enterprise_linux_for_power_little_endianredhat:enterprise_linux_for_power_little_endian_eusredhat:enterprise_linux_server_ausredhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsredhat:enterprise_linux_server_tusredhat:enterprise_linux_server_update_services_for_sap_solutions

Debilidades (CWE)

CWE-400CWE-400

Referencias

https://bugs.python.org/issue43075(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=1995234(secalert@redhat.com)

https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb(secalert@redhat.com)

https://github.com/python/cpython/pull/24391(secalert@redhat.com)

https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html(secalert@redhat.com)

https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html(secalert@redhat.com)

https://security.netapp.com/advisory/ntap-20220407-0001/(secalert@redhat.com)

https://ubuntu.com/security/CVE-2021-3733(secalert@redhat.com)

https://bugs.python.org/issue43075(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=1995234(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/python/cpython/pull/24391(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20220407-0001/(af854a3a-2127-422b-91ae-364da2661108)

https://ubuntu.com/security/CVE-2021-3733(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.