USN-2232-1: OpenSSL vulnerabilities
5 June 2014
openssl vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
Several security issues were fixed in OpenSSL.
Software Description
- openssl - Secure Socket Layer (SSL) cryptographic library and tools
Details
Jüri Aedla discovered that OpenSSL incorrectly handled invalid DTLS fragments. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS. (CVE-2014-0195)
Imre Rad discovered that OpenSSL incorrectly handled DTLS recursions. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2014-0221)
KIKUCHI Masashi discovered that OpenSSL incorrectly handled certain handshakes. A remote attacker could use this flaw to perform a man-in-the-middle attack and possibly decrypt and modify traffic. (CVE-2014-0224)
Felix Gröbert and Ivan Fratrić discovered that OpenSSL incorrectly handled anonymous ECDH ciphersuites. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS. (CVE-2014-3470)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 LTS
- libssl1.0.0 - 1.0.1f-1ubuntu2.2
- Ubuntu 13.10
- libssl1.0.0 - 1.0.1e-3ubuntu1.4
- Ubuntu 12.04 LTS
- libssl1.0.0 - 1.0.1-4ubuntu5.14
- Ubuntu 10.04 LTS
- libssl0.9.8 - 0.9.8k-7ubuntu8.18
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.