USN-2897-1: Nettle vulnerabilities

Releases

• Ubuntu 15.10
• Ubuntu 14.04 ESM

Packages

• 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

• libnettle4 - 2.7.1-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2015-8803
• CVE-2015-8804
• CVE-2015-8805