CVE-2025-4575

Public on 2025-05-22
Modified on 2025-05-23
Description
Issue summary: Use of -addreject option with the openssl x509 application adds
a trusted use instead of a rejected use for a certificate.

Impact summary: If a user intends to make a trusted certificate rejected for
a particular use it will be instead marked as trusted for that use.

A copy & paste error during minor refactoring of the code introduced this
issue in the OpenSSL 3.5 version. If, for example, a trusted CA certificate
should be trusted only for the purpose of authenticating TLS servers but not
for CMS signature verification and the CMS signature verification is intended
to be marked as rejected with the -addreject option, the resulting CA
certificate will be trusted for CMS signature verification purpose instead.

Only users which use the trusted certificate format who use the openssl x509
command line application to add rejected uses are affected by this issue.
The issues affecting only the command line application are considered to
be Low severity.

The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this
issue.

OpenSSL 3.4, 3.3, 3.2, 3.1, 3.0, 1.1.1 and 1.0.2 are also not affected by this
issue.
Severity
Medium severity
Medium
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core edk2 Not Affected
Amazon Linux 1 openssl Not Affected
Amazon Linux 2 - Core openssl Not Affected
Amazon Linux 2023 openssl Not Affected
Amazon Linux 2023 openssl-fips-provider-certified Not Affected
Amazon Linux 2 - Openssl-snapsafe Extra openssl-snapsafe Not Affected
Amazon Linux 2 - Core openssl11 Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
NVD CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L