Buffer Overflow Vulnerability in Asterisk Open Source 13, 14, 15, and Certified Asterisk 13.13

CVE-2017-16671 · MEDIUM Severity

AV:N/AC:L/AU:S/C:P/I:P/A:P

A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.

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