Ubuntu Security Notice USN-2897-1
15th February, 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 version:
- Ubuntu 15.10:
-
libnettle6
3.1.1-4ubuntu0.1
- Ubuntu 14.04 LTS:
-
libnettle4
2.7.1-1ubuntu0.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.