CVE-2017-5334

gnutls: Double-free while decoding crafted X.509 certificates

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.

La vulnerabilidad de liberación doble en la función gnutls_x509_ext_import_proxy de GnuTLS en versiones anteriores a 3.3.26 y 3.5.x en versiones anteriores a 3.5.8 permite a los atacantes remotos tener un impacto no especificado a través de una información de lenguaje de directivas elaborada en un certificado X.509 con una extensión Proxy Certificate Information.

A double-free flaw was found in the way GnuTLS parsed certain X.509 certificates with Proxy Certificate Information extension. An attacker could create a specially-crafted certificate which, when processed by an application compiled against GnuTLS, could cause that application to crash.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-01-10 CVE Reserved
2017-01-13 CVE Published
2023-06-28 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-415: Double Free
CWE-416: Use After Free

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/95370	Third Party Advisory
http://www.securitytracker.com/id/1037576	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2017/01/10/7	2018-10-30
http://www.openwall.com/lists/oss-security/2017/01/11/4	2018-10-30
https://gitlab.com/gnutls/gnutls/commit/c5aaa488a3d6df712dc8dff23a049133cab5ec1b	2018-10-30
https://security.gentoo.org/glsa/201702-04	2018-10-30

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html	2018-10-30
https://access.redhat.com/errata/RHSA-2017:2292	2018-10-30
https://gnutls.org/security.html#GNUTLS-SA-2017-1	2018-10-30
https://access.redhat.com/security/cve/CVE-2017-5334	2017-08-01
https://bugzilla.redhat.com/show_bug.cgi?id=1411835	2017-08-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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"		Leap Search vendor "Opensuse" for product "Leap"				42.2 Search vendor "Opensuse" for product "Leap" and version "42.2"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				<= 3.3.25 Search vendor "Gnu" for product "Gnutls" and version " <= 3.3.25"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.0 Search vendor "Gnu" for product "Gnutls" and version "3.5.0"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.1 Search vendor "Gnu" for product "Gnutls" and version "3.5.1"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.2 Search vendor "Gnu" for product "Gnutls" and version "3.5.2"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.3 Search vendor "Gnu" for product "Gnutls" and version "3.5.3"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.4 Search vendor "Gnu" for product "Gnutls" and version "3.5.4"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.5 Search vendor "Gnu" for product "Gnutls" and version "3.5.5"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.6 Search vendor "Gnu" for product "Gnutls" and version "3.5.6"		-		Affected
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				3.5.7 Search vendor "Gnu" for product "Gnutls" and version "3.5.7"		-		Affected