CVE-2015-8805
Summary
| CVE | CVE-2015-8805 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2016-02-23 19:59:03 UTC |
| Updated | 2026-05-06 22:30:45 UTC |
| Description | The ecc_256_modq 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-2015-8803. |
Risk And Classification
Primary CVSS: v3.0 9.8 CRITICAL from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-310 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 2.0 | [email protected] | Primary | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:L/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 15.10 | All | All | All |
| Application | Nettle Project | Nettle | All | All | All | All |
| Operating System | Opensuse | Leap | 42.1 | All | All | All |
| Operating System | Opensuse | Opensuse | 13.1 | All | All | All |
| Operating System | Opensuse | Opensuse | 13.2 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Fixed miscomputation bugs in secp-256r1 modulo functions. (c71d2c9d) · Commits · Nettle / nettle · GitLab | af854a3a-2127-422b-91ae-364da2661108 | git.lysator.liu.se | Patch |
| openSUSE-SU-2016:0486-1: moderate: Security update for libnettle | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| oss-security - Miscomputations of elliptic curve scalar multiplications in Nettle | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| Miscomputations of elliptic curve scalar multiplications in Nettle | The Fuzzing Project | af854a3a-2127-422b-91ae-364da2661108 | blog.fuzzing-project.org | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | rhn.redhat.com | |
| openSUSE-SU-2016:0475-1: moderate: Security update for libnettle | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| openSUSE-SU-2016:0477-1: moderate: Security update for libnettle | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| oss-security - Re: Miscomputations of elliptic curve scalar multiplications in Nettle | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| Nettle CVE-2015-8805 Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| USN-2897-1: Nettle vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.