CVE-2016-9939

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding routine. The library will allocate a memory block based on the length field of the ASN.1 object. If there is not enough content octets in the ASN.1 object, then the function will fail and the memory block will be zeroed even if its unused. There is a noticeable delay during the wipe for a large allocation.

Crypto ++ (también conocido como cryptopp y libcrypto ++) 5.6.4 contenía un error en su rutina de decodificación ASN.1 BER. La librería asignará un bloqueo de memoria basado en el campo de longitud del objeto ASN.1. Si no hay suficientes octetos de contenido en el objeto ASN.1, entonces la función fallará y el bloqueo de memoria se pondrá a cero aunque no esté en uso. Hay un retraso notable durante el borrado para una asignación grande.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-12-12 CVE Reserved
2017-01-30 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/94854	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2016/12/12/7	2023-11-07

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3748	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7IL5A6465IEPW5GAWGXB2ENJPFYVWTJM	2023-11-07

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\+\+"				5.6.4 Search vendor "Cryptopp" for product "Crypto\+\+" and version "5.6.4"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected