CVE-2021-3737

High

Description

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

SeverityHigh
CVSS7.5
Exploit probability96. percentile13.2%
ProductPython
PublishedMar 4, 2022
First seenMar 4, 2022
Weakness typeCWE-835CWE-835

How to fix

Update
  • python python3.6.14, 3.7.11, 3.8.11, 3.9.6 or later

Affected products

ProductAffected versionsFixed in
python python3.6.0 ≤ v < 3.6.14, 3.7.0 ≤ v < 3.7.11, 3.8.0 ≤ v < 3.8.11, 3.9.0 ≤ v < 3.9.63.6.14, 3.7.11, 3.8.11, 3.9.6
redhat codeready_linux_builder8.0—
redhat codeready_linux_builder_for_ibm_z_systems8.0—
redhat codeready_linux_builder_for_power_little_endian8.0—
redhat enterprise_linux6.0, 7.0, 8.0—
redhat enterprise_linux_for_ibm_z_systems8.0—
redhat enterprise_linux_for_power_little_endian8.0—
fedoraproject fedora33, 34—
canonical ubuntu_linux14.04, 16.04, 18.04, 20.04, 21.04—
netapp hciNo range specified—
netapp management_services_for_element_softwareNo range specified—
netapp netapp_xcp_smbNo range specified—
netapp ontap_select_deploy_administration_utilityNo range specified—
netapp xcp_nfsNo range specified—
oracle communications_cloud_native_core_binding_support_function22.1.3—
oracle communications_cloud_native_core_network_exposure_function22.1.1—
oracle communications_cloud_native_core_policy22.2.0—

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CVE-2021-3737 · Python · Dark Radar