Vulnerability Details : 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. 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.
Vulnerability category: Overflow
Products affected by CVE-2017-16671
- cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
- cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert4:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert6:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert5:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc4:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc3:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc2:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:cert1_rc1:*:*:*:*:*:*
- cpe:2.3:a:digium:certified_asterisk:13.13.0:*:*:*:*:*:*:*
Threat overview for CVE-2017-16671
Top countries where our scanners detected CVE-2017-16671
Top open port discovered on systems with this issue
8088
IPs affected by CVE-2017-16671 9,478
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2017-16671!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2017-16671
12.00%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-16671
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2017-16671
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-16671
-
https://issues.asterisk.org/jira/browse/ASTERISK-27337
[ASTERISK-27337] chan_sip: Security vulnerability with client code header (revisited) - Digium/Asterisk JIRAIssue Tracking;Vendor Advisory
-
https://security.gentoo.org/glsa/201811-11
Asterisk: Multiple vulnerabilities (GLSA 201811-11) — Gentoo security
-
https://www.debian.org/security/2017/dsa-4076
Debian -- Security Information -- DSA-4076-1 asterisk
-
http://www.securityfocus.com/bid/101760
Multiple Asterisk Products CDR Remote Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
http://downloads.digium.com/pub/security/AST-2017-010.html
AST-2017-010Vendor Advisory
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