CVE-2019-14318

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.

Crypto++ versión 8.3.0 y anterior, contiene un canal lateral de sincronización en la generación de firmas ECDSA. Esto permite a un atacante local o remoto, capaz de medir la duración de cientos a miles de operaciones de firma, calcular la clave privada utilizada. El problema se produce porque la multiplicación de scalar en el archivo ecp.cpp (curvas del campo principal, fugas pequeñas) y el archivo algebra.cpp (curvas del campo binario, fugas grandes) no son de tiempo constante y filtra la longitud de bits del scalar entre otra información.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-07-27 CVE Reserved
2019-07-30 CVE Published
2024-07-23 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-417: Communication Channel Errors

CAPEC

References (6)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2019/10/02/2	Mailing List
https://minerva.crocs.fi.muni.cz	X_refsource_misc
https://tches.iacr.org/index.php/TCHES/article/view/7337	Third Party Advisory

URL	Date	SRC
https://eprint.iacr.org/2011/232.pdf	2024-08-05

URL	Date	SRC
https://github.com/weidai11/cryptopp/issues/869	2019-08-20

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00066.html	2019-08-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cryptopp Search vendor "Cryptopp"		Crypto\+\+ Search vendor "Cryptopp" for product "Crypto\+\+"				<= 8.3.0 Search vendor "Cryptopp" for product "Crypto\+\+" and version " <= 8.3.0"		-		Affected