CVE-2017-16671
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.34% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- digium/asterisk · digium/certified asterisk
- Source
- cve@mitre.org
References
- http://downloads.digium.com/pub/security/AST-2017-010.htmlVendor Advisory
- http://www.securityfocus.com/bid/101760Third Party Advisory, VDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27337Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201811-11
- https://www.debian.org/security/2017/dsa-4076
- http://downloads.digium.com/pub/security/AST-2017-010.htmlVendor Advisory
- http://www.securityfocus.com/bid/101760Third Party Advisory, VDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27337Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201811-11
- https://www.debian.org/security/2017/dsa-4076
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.