9.8
CRITICAL
CVE-2018-16657
Kamailio Buffer Overflow/Segmentation Fault
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.

INFO

Published Date :

Sept. 7, 2018, 2:29 p.m.

Last Modified :

Aug. 24, 2020, 5:37 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2018-16657 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Kamailio kamailio
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-16657.

URL Resource
https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html Mailing List Third Party Advisory
https://skalatan.de/blog/advisory-hw-2018-06 Exploit Patch Third Party Advisory
https://www.debian.org/security/2018/dsa-4292 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-16657 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-16657 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-476
  • Initial Analysis by [email protected]

    Nov. 15, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html Mailing List, Third Party Advisory
    Changed Reference Type https://skalatan.de/blog/advisory-hw-2018-06 No Types Assigned https://skalatan.de/blog/advisory-hw-2018-06 Exploit, Patch, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2018/dsa-4292 No Types Assigned https://www.debian.org/security/2018/dsa-4292 Third Party Advisory
    Added CWE CWE-20
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* versions up to (excluding) 5.0.7 *cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:* versions from (including) 5.1.0 up to (excluding) 5.1.4
  • CVE Modified by [email protected]

    Sep. 13, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 12, 2018

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2018/dsa-4292 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-16657 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-16657 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.02 }} -0.12%

score

0.83576

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability