CVE-2015-8804

Description

x86_64/ecc-384-modp.asm in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-384 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 7.65% Top 10%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory liu.se
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html vendor advisory
https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
https://git.lysator.liu.se/nettle/nettle/commit/fa269b6ad06dd13c901dbd84a12e52b918a09cd7 patch
http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html vendor advisory
https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003024.html mailing list vendor advisory
http://www.ubuntu.com/usn/USN-2897-1 vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html vendor advisory
http://www.openwall.com/lists/oss-security/2016/02/02/2 mailing list
http://rhn.redhat.com/errata/RHSA-2016-2582.html vendor advisory
https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html mailing list
http://www.openwall.com/lists/oss-security/2016/02/03/1 mailing list

Frequently Asked Questions

What is the severity of CVE-2015-8804?
CVE-2015-8804 has been scored as a critical severity vulnerability.
How to fix CVE-2015-8804?
To fix CVE-2015-8804, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8804 being actively exploited in the wild?
It is possible that CVE-2015-8804 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.