CVE-2015-8803
nettle: secp256 calculation bug
Severity Score
9.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
La función ecc_256_modp en ecc-256.c en Nettle en versiones anteriores a 3.2 no maneja correctamente la propagación del acarreo y produce una salida incorrecta en su implementación de la curva elíptica P-256 NIST, lo que permite a atacantes tener un impacto no especificado a través de vectores desconocidos, una vulnerabilidad diferente a CVE-2015-8805.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-02-02 CVE Reserved
- 2016-02-15 CVE Published
- 2024-08-06 CVE Updated
- 2024-10-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-254: 7PK - Security Features
- CWE-310: Cryptographic Issues
- CWE-358: Improperly Implemented Security Check for Standard
CAPEC
References (16)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/02/02/2 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/02/03/1 | Mailing List |
|
| https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html | X_refsource_misc | |
| https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html | Mailing List |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d | 2018-10-30 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nettle Project Search vendor "Nettle Project" | Nettle Search vendor "Nettle Project" for product "Nettle" | <= 3.1.1 Search vendor "Nettle Project" for product "Nettle" and version " <= 3.1.1" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.1 Search vendor "Opensuse" for product "Leap" and version "42.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Opensuse Search vendor "Opensuse" for product "Opensuse" | 13.1 Search vendor "Opensuse" for product "Opensuse" and version "13.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Opensuse Search vendor "Opensuse" for product "Opensuse" | 13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2" | - |
Affected
| ||||||