Buffer Overflow

2024-01-1317:28:17

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

asterisk

buffer overflow

pjsip_header

update

denial of service

software

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

46.6%

JSON

Asterisk is vulnerable to Buffer Overflow. The vulnerability is caused due a missing validation for the available buffer space while storing a new value of a PJSIP_HEADER dialplan function in the update functionality. This can lead to overwriting memory or causing a crash resulting in Denial Of Service (DOS). The vulnerability occurs only if update functionality is used.