CVE-2017-14603

high-risk

Published 2017-10-10

In Asterisk 11.x before 11.25.3, 13.x before 13.17.2, and 14.x before 14.6.2 and Certified Asterisk 11.x before 11.6-cert18 and 13.x before 13.13-cert6, insufficient RTCP packet validation could allow reading stale buffer contents and when combined with the "nat" and "symmetric_rtp" options allow redirecting where Asterisk sends the next RTCP report.

Do I need to act?

0.75% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (20)

Asterisk

Affected Vendors

Digium

References (6)

Vendor Advisory http://downloads.asterisk.org/pub/security/AST-2017-008.html

Third Party Advisory http://www.debian.org/security/2017/dsa-3990

Issue Tracking https://issues.asterisk.org/jira/browse/ASTERISK-27274

Vendor Advisory http://downloads.asterisk.org/pub/security/AST-2017-008.html

Third Party Advisory http://www.debian.org/security/2017/dsa-3990

Issue Tracking https://issues.asterisk.org/jira/browse/ASTERISK-27274

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high-risk

Severity 26/34 · High

Exploitability 3/34 · Minimal

Exposure 33/34 · Critical