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AUSCERT External Security Bulletin Redistribution
12 December 2017
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2017-3738 CVE-2017-3737
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Ubuntu Security Notice USN-3512-1
December 11, 2017
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 17.10
- - Ubuntu 17.04
- - Ubuntu 16.04 LTS
Several security issues were fixed in OpenSSL.
- - openssl: Secure Socket Layer (SSL) cryptographic library and tools
David Benjamin discovered that OpenSSL did not correctly prevent
buggy applications that ignore handshake errors from subsequently calling
certain functions. (CVE-2017-3737)
It was discovered that OpenSSL incorrectly performed the x86_64 Montgomery
multiplication procedure. While unlikely, a remote attacker could possibly
use this issue to recover private keys. (CVE-2017-3738)
The problem can be corrected by updating your system to the following
Ubuntu 16.04 LTS:
After a standard system update you need to reboot your computer to make
all the necessary changes.
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