CVE-2017-9951

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.

La función try_read_command en el archivo memcached.c en memcached anterior a versión 1.4.39, permite a los atacantes remotos causar una denegación de servicio (fallo de segmentación) por medio de una petición para agregar y configurar una clave, lo que hace una comparación entre un int firmado y sin firmar y activa una lectura excesiva del búfer en la región heap de la memoria. NOTA: esta vulnerabilidad existe debido a una solución incompleta para el CVE-2016-8705.

*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

2017-06-26 CVE Reserved
2017-07-17 CVE Published
2024-07-29 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/99874	Vdb Entry
https://github.com/memcached/memcached/wiki/ReleaseNotes1439	Third Party Advisory
https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ	Mailing List

URL	Date	SRC
https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://usn.ubuntu.com/3588-1	2019-10-03
https://www.debian.org/security/2018/dsa-4218	2019-10-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Memcached Search vendor "Memcached"		Memcached Search vendor "Memcached" for product "Memcached"				<= 1.4.38 Search vendor "Memcached" for product "Memcached" and version " <= 1.4.38"		-		Affected