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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nettle | 3.2-1 | — |
| Debian 13 | nettle | 3.2-1 | — |
| Debian 12 | nettle | 3.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | nettle | 2.7.1-1ubuntu0.1 | USN-2897-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nettle +1 | 2.7.1-8.el7 | RHSA-2016:2582 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | libnettle | 2.7.1-9.1 | SUSE-SU-2016:0455-1 |
| SLES 12 | libnettle | 2.7.1-9.1 | SUSE-SU-2016:0455-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | libnettle | 2.7.1-9.1 | SUSE-SU-2016:0455-1 |
| SLES for SAP 12 | libnettle | 2.7.1-9.1 | SUSE-SU-2016:0455-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nettle +1 | 2.7.1-8.el7 | ELSA-2016-2582 |
Advisories 5
- WID-SEC-2026-3113 Red Hat Enterprise Linux: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Aug 31, 2026
- RHSA-2016:2582 Red Hat Security Advisory: nettle security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2897-1 nettle vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2016:0455-1 Security update for libnettle SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2016-2582 Moderate: nettle security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 9, 2016
References
- openSUSE-SU-2016:0486 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
- openSUSE-SU-2016:0477 vendor-advisory
- [nettle-bugs] 20151211 Miscalculations on secp384 curve mailing-list
- USN-2897-1 vendor-advisory
- openSUSE-SU-2016:0475 vendor-advisory
- [oss-security] 20160202 Miscomputations of elliptic curve scalar multiplications in Nettle mailing-list
- RHSA-2016:2582 vendor-advisory
- [info-gnu] 20160128 ANNOUNCE: Nettle-3.2 mailing-list
- [oss-security] 20160202 Re: Miscomputations of elliptic curve scalar multiplications in Nettle mailing-list