CVE-2017-16671

MEDIUM

Description

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.

References

http://downloads.digium.com/pub/security/AST-2017-010.html

http://www.securityfocus.com/bid/101760

https://issues.asterisk.org/jira/browse/ASTERISK-27337

https://security.gentoo.org/glsa/201811-11

https://www.debian.org/security/2017/dsa-4076

Details

Source: MITRE

Published: 2017-11-09

Updated: 2018-11-25

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 6.5

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH