|Description||An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
|Debian Bugs||857560, 857561|
Vulnerable and fixed packages
The table below lists information on source packages.
|mbedtls (PTS)||stretch (security), stretch||2.4.2-1+deb9u3||fixed|
The information below is based on the following data on fixed versions.
[wheezy] - polarssl <not-affected> (Vulnerable code not present)
Wheezy do not have any elliptic curve functionality. Jessie is affected however.