CVE-2015-2319

Ubuntu Security Notice USN-2547-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The TLS stack in Mono before 3.12.1 makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204.

La pila TLS en Mono en versiones anteriores a la 3.12.1 hace que sea más fácil para los atacantes remotos realizar ataques de degradación de cifrado para los cifrados EXPORT_RSA a través de tráfico TLS manipulado. Esta vulnerabilidad está relacionada con el problema "FREAK", una vulnerabilidad diferente de CVE-2015-0204.

It was discovered that the Mono TLS implementation was vulnerable to the SKIP-TLS vulnerability. A remote attacker could possibly use this issue to perform client impersonation attacks. It was discovered that the Mono TLS implementation was vulnerable to the FREAK vulnerability. A remote attacker or a man in the middle could possibly use this issue to force the use of insecure ciphersuites. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-03-17 CVE Reserved
2015-03-23 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2015/03/17/9	Mailing List
http://www.securityfocus.com/bid/73250	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1202869	Issue Tracking
https://github.com/mono/mono/commit/9c38772f094168d8bfd5bc73bf8925cd04faad10	Third Party Advisory
https://mitls.org/pages/attacks/SMACK#freak	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability	2018-01-30
http://www.ubuntu.com/usn/USN-2547-1	2018-01-30
https://www.debian.org/security/2015/dsa-3202	2018-01-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mono-project Search vendor "Mono-project"		Mono Search vendor "Mono-project" for product "Mono"				< 3.12.1 Search vendor "Mono-project" for product "Mono" and version " < 3.12.1"		-		Affected