This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2018-1000520 →

DEBIAN-CVE-2018-1000520

ARM mbedTLS version 2.7.0 and earlier contains a Ciphersuite Allows Incorrectly Signed Certificates vulnerability in mbedtls_ssl_get_verify_result() t...

Original description

The description as published by the source.

ARM mbedTLS version 2.7.0 and earlier contains a Ciphersuite Allows Incorrectly Signed Certificates vulnerability in mbedtls_ssl_get_verify_result() that can result in ECDSA-signed certificates are accepted, when only RSA-signed ones should be.. This attack appear to be exploitable via Peers negotiate a TLS-ECDH-RSA-* ciphersuite. Any of the peers can then provide an ECDSA-signed certificate, when only an RSA-signed one should be accepted..

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 mbedtls

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 mbedtls

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 mbedtls

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org