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CVE-2020-25657

Published: 12 January 2021

A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to confidentiality.

Priority

Low

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
m2crypto
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
bionic Needs triage

focal Needs triage

hirsute Ignored
(end of life)
trusty Needs triage

upstream Needs triage

xenial Needs triage

impish Ignored
(end of life)
jammy Needs triage

lunar Ignored
(end of life, was needs-triage)
kinetic Ignored
(end of life, was needs-triage)
mantic Needs triage

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N