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CVE-2018-7284

7.5 · HIGH

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.

Published Feb 22, 2018CWE-119EPSS 66.17%

Overview

CVE-2018-7284 is a high-severity vulnerability. It was published on February 22, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refdownloads.asterisk.org/pub/security/AST-2018-004.htmlRefwww.securityfocus.com/bid/103151Refwww.securitytracker.com/id/1040416Refwww.debian.org/security/2018/dsa-4320Refwww.exploit-db.com/exploits/44184/Refdownloads.asterisk.org/pub/security/AST-2018-004.htmlRefwww.securityfocus.com/bid/103151Refwww.securitytracker.com/id/1040416Refwww.debian.org/security/2018/dsa-4320Refwww.exploit-db.com/exploits/44184/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-7284?

CVE-2018-7284 is a high-severity vulnerability. It was published on February 22, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2018-7284?

This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-7284?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-7284?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-7284 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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