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osvGoogleOSV:CVE-2022-48566
HistoryAug 22, 2023 - 7:16 p.m.

CVE-2022-48566

2023-08-2219:16:32
Google
osv.dev
6
python
3.9.1
hmac
compare_digest
constant-time-defeating
issue
software

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

7.1 High

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

23.9%

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.

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

7.1 High

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

23.9%