CVE-2021-3733

MEDIUM

6.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.5

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/10/2022

Ultima modificacao11/3/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

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

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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