==========================================================================
Ubuntu Security Notice USN-2897-1
February 15, 2016
nettle vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 15.10
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Nettle.
Software Description:
– nettle: low level cryptographic library (public-key cryptos)
Details:
Hanno Böck discovered that Nettle incorrectly handled carry propagation in
the NIST P-256 elliptic curve. (CVE-2015-8803)
Hanno Böck discovered that Nettle incorrectly handled carry propagation in
the NIST P-384 elliptic curve. (CVE-2015-8804)
Niels Moeller discovered that Nettle incorrectly handled carry propagation
in the NIST P-256 elliptic curve. (CVE-2015-8805)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
libnettle6 3.1.1-4ubuntu0.1
Ubuntu 14.04 LTS:
libnettle4 2.7.1-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2897-1
CVE-2015-8803, CVE-2015-8804, CVE-2015-8805
Package Information:
https://launchpad.net/ubuntu/+source/nettle/3.1.1-4ubuntu0.1
https://launchpad.net/ubuntu/+source/nettle/2.7.1-1ubuntu0.1
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