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Resource Exhaustion Affecting python3-idle package, versions <0:3.6.8-47.el8_6.4

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.78% (82nd percentile)

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  • Snyk ID SNYK-RHEL8-PYTHON3IDLE-6205850
  • published 26 Jan 2024
  • disclosed 9 Nov 2022
Report a new vulnerability Found a mistake?

Introduced: 9 Nov 2022

CVE-2022-45061 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade RHEL:8 python3-idle to version 0:3.6.8-47.el8_6.4 or higher.
This issue was patched in RHSA-2024:0430.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-idle package and not the python3-idle package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.

References

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

Red Hat

7.5 high
Expand this section

SUSE

6.5 medium