What is CVE-2018-14767?

CVE-2018-14767 is a critical-severity vulnerability in Kamailio, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2018-07-31.

How severe is CVE-2018-14767?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Kamailio

CVE-2018-14767

In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with a double "To" header and an empty "To" tag causes a segmentation fault and crash. The reason is missing input validation in the "build_res_buf_from_sip_req" core function. This could result in denial of service and potentially the execution of arbitrary code.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.293 (98.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kamailio
Debian Debian_linux — versions 8.0, 9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-14767?: CVE-2018-14767 is a critical-severity vulnerability in Kamailio, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2018-07-31.
How severe is CVE-2018-14767?: Critical severity. CVSS v3 base score is 9.8 out of 10.