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CVE
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CVE-2017-16671Date: (C)2017-11-10   (M)2018-06-18


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 8.8CVSS Score : 6.5
Exploit Score: 2.8Exploit Score: 8.0
Impact Score: 5.9Impact Score: 6.4
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: SINGLE_INSTANCE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
BID-101760
DSA-4076
http://downloads.digium.com/pub/security/AST-2017-010.html
https://issues.asterisk.org/jira/browse/ASTERISK-27337

CPE    54
cpe:/a:digium:asterisk:14.0.0
cpe:/a:digium:asterisk:14.0.0:rc2
cpe:/a:digium:asterisk:14.0.0:rc1
cpe:/a:digium:asterisk:14.0.0:beta1
...
CWE    1
CWE-119
OVAL    5
oval:org.secpod.oval:def:603226
oval:org.secpod.oval:def:1800121
oval:org.secpod.oval:def:1800907
oval:org.secpod.oval:def:114581
...

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