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CVE-2022-48566

Date: August 21, 2023

An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in hmac.compare_digest.

Language: Python

Severity Score

Related Resources (8)

https://bugs.python.org/issue40791
https://github.com/python/cpython/issues/105987
https://nvd.nist.gov/vuln/detail/CVE-2022-48566
https://security.netapp.com/advisory/ntap-20231006-0013/
https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html
https://nvd.nist.gov/vuln/detail/CVE-2023-38898
https://lists.debian.org/debian-lts-announce/2023/10/msg00017.html
https://www.mend.io/vulnerability-database/CVE-2022-48566

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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