Cryptographic Issues The advisory has been revoked - it doesn't affect any version of package nettle (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1204-NETTLE-623839
- published23 Feb 2016
- disclosed23 Feb 2016
Introduced: 23 Feb 2016
CVE-2015-8803 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:12.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nettle package and not the nettle package as distributed by Ubuntu.
The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8805.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-8803
- https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
- https://security-tracker.debian.org/tracker/CVE-2015-8803
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176807.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177229.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177473.html
- https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
- https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html
- https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
- http://www.openwall.com/lists/oss-security/2016/02/02/2
- http://www.openwall.com/lists/oss-security/2016/02/03/1
- http://rhn.redhat.com/errata/RHSA-2016-2582.html
- http://www.ubuntu.com/usn/USN-2897-1