CVE-2018-7284 Detail

Current Description

A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://downloads.asterisk.org/pub/security/AST-2018-004.html Patch  Vendor Advisory 
http://www.securityfocus.com/bid/103151 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1040416 Third Party Advisory  VDB Entry 
https://www.debian.org/security/2018/dsa-4320 Third Party Advisory 
https://www.exploit-db.com/exploits/44184/ Exploit  Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-7284
NVD Published Date:
02/21/2018
NVD Last Modified:
03/01/2019
Source:
MITRE