CVE Vulnerabilities

CVE-2023-50781

Observable Timing Discrepancy

Published: Feb 05, 2024 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM

A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Weakness

Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Affected Software

Name Vendor Start Version End Version
Enterprise_linux Redhat 8.0 (including) 8.0 (including)
Enterprise_linux Redhat 9.0 (including) 9.0 (including)
M2crypto Ubuntu bionic *
M2crypto Ubuntu lunar *
M2crypto Ubuntu mantic *
M2crypto Ubuntu trusty *
M2crypto Ubuntu trusty/esm *
M2crypto Ubuntu xenial *

References