CVE-2025-27809 Affecting mbedtls package, versions *
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- published26 Mar 2025
- disclosed25 Mar 2025
Introduced: 25 Mar 2025
NewCVE-2025-27809 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
How to fix?
There is no fixed version for Debian:unstable mbedtls.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mbedtls package and not the mbedtls package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.
References
- https://security-tracker.debian.org/tracker/CVE-2025-27809
- https://github.com/Mbed-TLS/mbedtls/releases
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-1/
- https://github.com/Mbed-TLS/mbedtls/issues/466
- https://mastodon.social/@bagder/114219540623402700