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CVE
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CVE-2018-16657Date: (C)2018-09-15   (M)2023-12-22


In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 9.8CVSS Score : 7.5
Exploit Score: 3.9Exploit Score: 10.0
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: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: HIGHAvailability: PARTIAL
Integrity: HIGH 
Availability: HIGH 
  
Reference:
DSA-4292
https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html
https://skalatan.de/blog/advisory-hw-2018-06

CPE    3
cpe:/o:debian:debian_linux:9.0
cpe:/a:kamailio:kamailio
cpe:/o:debian:debian_linux:8.0
CWE    1
CWE-476
OVAL    2
oval:org.secpod.oval:def:53415
oval:org.secpod.oval:def:603513

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