Tyson Smith and Jed Davis discovered that NSS incorrectly handled memory. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code.
This update refreshes the NSS package to version 3.23 which includes the latest CA certificate bundle. As a security improvement, this update also modifies NSS behaviour to reject DH key sizes below 1024 bits, preventing a possible downgrade attack.
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{ "availability": "No subscription required", "binaries": [ { "libnss3-nssdb": "2:3.23-0ubuntu0.16.04.1", "libnss3-1d": "2:3.23-0ubuntu0.16.04.1", "libnss3-dbgsym": "2:3.23-0ubuntu0.16.04.1", "libnss3": "2:3.23-0ubuntu0.16.04.1", "libnss3-dev": "2:3.23-0ubuntu0.16.04.1", "libnss3-dbg": "2:3.23-0ubuntu0.16.04.1", "libnss3-tools": "2:3.23-0ubuntu0.16.04.1", "libnss3-tools-dbgsym": "2:3.23-0ubuntu0.16.04.1" } ] }