CVE-2017-7869

gnutls: Out-of-bounds write related to the cdk_pkt_read function (GNUTLS-SA-2017-3)

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

GnuTLS before 2017-02-20 has an out-of-bounds write caused by an integer overflow and heap-based buffer overflow related to the cdk_pkt_read function in opencdk/read-packet.c. This issue (which is a subset of the vendor's GNUTLS-SA-2017-3 report) is fixed in 3.5.10.

GnuTLS en versiones anteriores a 20-02-2017 tiene una escritura fuera de límites provocado por un desbordamiento de entero y desbordamiento de búfer basado en memoria dinámica en relación con la función cdk_pkt_read en opencdk/read-packet.c. Este problema (que es un subconjunto del informe GNUTLS-SA-2017-3 del proveedor) se fija en 3.5.10.

*Credits: N/A

CVSS Scores

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

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

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

2017-04-14 CVE Reserved
2017-04-14 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/97040	Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=420	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gnutls/gnutls/commit/51464af713d71802e3c6d5ac15f1a95132a354fe	2018-01-05
https://www.gnutls.org/security.html	2018-01-05

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:2292	2018-01-05
https://access.redhat.com/security/cve/CVE-2017-7869	2017-08-01
https://bugzilla.redhat.com/show_bug.cgi?id=1443033	2017-08-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnu Search vendor "Gnu"		Gnutls Search vendor "Gnu" for product "Gnutls"				<= 3.5.9 Search vendor "Gnu" for product "Gnutls" and version " <= 3.5.9"		-		Affected