Off-by-one Error

2023-10-2910:30:29

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

memcached

vulnerability

code execution

server crash

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

7.9

Confidence

High

EPSS

0.001

Percentile

43.8%

JSON

memcached is vulnerable to Off-by-one Error. An attacker could exploit this vulnerability by sending a specially crafted proxy request to a vulnerable Memcached server when \n is used instead of \r\n. The server would then attempt to process the request, which would cause the server to crash. The attacker could then use the crash to execute arbitrary code on the server.