CVE & CISA-KEV Catalog

CVE-2017-16671

HIGHEPSS 87th pctl
8.8
CVSS v3
NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available
asteriskDebian
Fixed in:1:13.18.1~dfsg-1CVE-2017-16671
Fixed in:1:13.18.1~dfsg-1CVE-2017-16671
asteriskUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-configUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-dahdiUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-mobileUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-modulesUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-mp3Ubuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-mysqlUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-ooh323Ubuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-voicemailUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-voicemail-imapstorageUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-voicemail-odbcstorageUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1
asterisk-vpbUbuntu
Fixed in:1:13.1.0~dfsg-1.1ubuntu4.1+esm1USN-4814-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

3.34%probability of exploitation in 30 days
87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Third-Party Advisory1

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-4966Critical9.4100%KEV + RansomFix
CVE-2017-11882High7.8100%KEV + Ransom-
CVE-2020-0796Critical10.0100%KEV + Ransom-
CVE-2008-4250Critical9.899%KEV-
CVE-2017-15944Critical9.898%KEVFix
CVE-2015-0014High10.097%--
Embed a live status badge for CVE-2017-16671
CVE-2017-16671 severity badge

Markdown

[![CVE-2017-16671](https://tridentstack.com/cve/badge/CVE-2017-16671.svg)](https://tridentstack.com/cve/CVE-2017-16671)

HTML

<a href="https://tridentstack.com/cve/CVE-2017-16671"><img src="https://tridentstack.com/cve/badge/CVE-2017-16671.svg" alt="CVE-2017-16671"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.