Vulnerability Name:

CVE-2018-16657 (CCN-149719)

Assigned:2018-09-05
Published:2018-09-05
Updated:2020-08-24
Summary: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 v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-16657

Source: XF
Type: UNKNOWN
kamailio-cve201816657-dos(149719)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20180912 [SECURITY] [DLA 1503-1] kamailio security update

Source: CCN
Type: Skalatan Advisory HW-2018-06
Security vulnerability in Kamailio core related to Via header processing, denial of service possible

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://skalatan.de/blog/advisory-hw-2018-06

Source: DEBIAN
Type: Third Party Advisory
DSA-4292

Source: CCN
Type: Kamailio Web site
Kamailio

Vulnerable Configuration:Configuration 1:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:kamailio:kamailio:*:*:*:*:*:*:*:* (Version < 5.0.7)
  • OR cpe:/a:kamailio:kamailio:*:*:*:*:*:*:*:* (Version >= 5.1.0 and < 5.1.4)

    • Configuration CCN 1:
  • cpe:/a:kamailio:kamailio:5.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:kamailio:kamailio:5.1.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2018166570000000
    V
    		CVE-2018-16657 on Ubuntu 19.04 (disco) - medium.
    2018-09-07
    oval:com.ubuntu.bionic:def:201816657000
    V
    		CVE-2018-16657 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-09-07
    oval:com.ubuntu.cosmic:def:2018166570000000
    V
    		CVE-2018-16657 on Ubuntu 18.10 (cosmic) - medium.
    2018-09-07
    oval:com.ubuntu.cosmic:def:201816657000
    V
    		CVE-2018-16657 on Ubuntu 18.10 (cosmic) - medium.
    2018-09-07
    oval:com.ubuntu.bionic:def:2018166570000000
    V
    		CVE-2018-16657 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-09-07
    oval:com.ubuntu.trusty:def:201816657000
    V
    		CVE-2018-16657 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-09-07
    oval:com.ubuntu.xenial:def:2018166570000000
    V
    		CVE-2018-16657 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-09-07
    oval:com.ubuntu.xenial:def:201816657000
    V
    		CVE-2018-16657 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-09-07
    BACK
    debian debian linux 8.0
    debian debian linux 9.0
    kamailio kamailio *
    kamailio kamailio *
    kamailio kamailio 5.0.6
    kamailio kamailio 5.1.3