[Debian-iot-maintainers] Bug#1118750: mbedtls: CVE-2025-54764

[Salvatore Bonaccorso]

Source: mbedtls
Version: 3.6.4-2
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for mbedtls.

CVE-2025-54764[0]:
| Mbed TLS before 3.6.5 allows a local timing attack against certain
| RSA operations, and direct calls to mbedtls_mpi_mod_inv or
| mbedtls_mpi_gcd.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-54764
    https://www.cve.org/CVERecord?id=CVE-2025-54764
[1] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-10-ssbleed-mstep/

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore