Ubuntu Security Notice 1732-2 - USN-1732-1 fixed vulnerabilities in OpenSSL. The fix for CVE-2013-0166 and CVE-2012-2686 introduced a regression causing decryption failures on hardware supporting AES-NI. This update temporarily reverts the security fix pending further investigation. Adam Langley and Wolfgang Ettlingers discovered that OpenSSL incorrectly handled certain crafted CBC data when used with AES-NI. 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 and Ubuntu 12.10. Nadhem Alfardan and Kenny Paterson discovered that the TLS protocol as used in OpenSSL was vulnerable to a timing side-channel attack known as the "Lucky Thirteen" issue. A remote attacker could use this issue to perform plaintext-recovery attacks via analysis of timing data. Various other issues were also addressed.
2367bcc3d45834f284f828f0ff2c01105eb0f564e86bef545dbb3c3941c12cd7
© 2022 Packet Storm. All rights reserved.
%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)){kind=small}
Follow us on Twitter
Follow us on Facebook
Subscribe to an RSS Feed