FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

OpenSSL -- Remote Information Disclosure

Affected packages
1.0.1 <= openssl < 1.0.1_10
1.0.1 <= mingw32-openssl < 1.0.1g
Affected systems
10.0 <= FreeBSD < 10.0_1

Details

VuXML ID 5631ae98-be9e-11e3-b5e3-c80aa9043978
Discovery 2014-04-07
Entry 2014-04-07
Modified 2014-04-11

OpenSSL Reports:

A missing bounds check in the handling of the TLS heartbeat extension can be used to reveal up to 64k of memory to a connected client or server.

Affected users should upgrade to OpenSSL 1.0.1g. Users unable to immediately upgrade can alternatively recompile OpenSSL with -DOPENSSL_NO_HEARTBEATS.

The bug allows anyone on the Internet to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names and passwords of the users and the actual content. This allows attackers to eavesdrop communications, steal data directly from the services and users and to impersonate services and users.

The code used to handle the Heartbeat Extension does not do sufficient boundary checks on record length, which allows reading beyond the actual payload.

References

CVE Name CVE-2014-0160
FreeBSD Advisory FreeBSD-SA-14:06.openssl
URL http://www.heartbleed.com
URL https://www.openssl.org/news/secadv_20140407.txt
URL https://www.openssl.org/news/vulnerabilities.html#2014-0076