USN-2165-1: OpenSSL vulnerabilities

Packages

openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

Neel Mehta discovered that OpenSSL incorrectly handled memory in the TLS
heartbeat extension. An attacker could use this issue to obtain up to 64k
of memory contents from the client or server, possibly leading to the
disclosure of private keys and other sensitive information. (CVE-2014-0160)

Yuval Yarom and Naomi Benger discovered that OpenSSL incorrectly handled
timing during swap operations in the Montgomery ladder implementation. An
attacker could use this issue to perform side-channel attacks and possibly
recover ECDSA nonces. (CVE-2014-0076)

Neel Mehta discovered that OpenSSL incorrectly handled memory in the TLS
heartbeat extension. An attacker could use this issue to obtain up to 64k
of memory contents from the client or server, possibly leading to the
disclosure of private keys and other sensitive information. (CVE-2014-0160)

Yuval Yarom and Naomi Benger discovered that OpenSSL incorrectly handled
timing during swap operations in the Montgomery ladder implementation. An
attacker could use this issue to perform side-channel attacks and possibly
recover ECDSA nonces. (CVE-2014-0076)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes. Since this issue may have resulted in compromised private keys, it is recommended to regenerate them.

Learn more about how to get the fixes.

Ubuntu Release	Package Version
13.10 saucy	libssl1.0.0 – 1.0.1e-3ubuntu1.2
12.10 quantal	libssl1.0.0 – 1.0.1c-3ubuntu2.7
12.04 precise	libssl1.0.0 – 1.0.1-4ubuntu5.12

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References