CVE-2018-16657

N/A
Published: September 7, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 01:44 AM UTC
2 products affected across 2 vendorsDebian LinuxKamailio

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Severity
N/A
Exploit prediction
EPSS 4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.0.75.1.0 ≤ v < 5.1.4
Affected range stops below 5.0.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.1.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html
x_refsource_MISCExploitPatchThird Party Advisory
https://skalatan.de/blog/advisory-hw-2018-06
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
https://www.debian.org/security/2018/dsa-4292

CVSS

Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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