Improper Input Validation Affecting kamailio package, versions <5.1.4-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published31 Jul 2018
- disclosed31 Jul 2018
Introduced: 31 Jul 2018
CVE-2018-14767 (opens in a new tab)How to fix?
Upgrade Alpine:3.14 kamailio to version 5.1.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kamailio package and not the kamailio package as distributed by Alpine.
See How to fix? for Alpine:3.14 relevant fixed versions and status.
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.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14767
- https://www.debian.org/security/2018/dsa-4267
- https://lists.debian.org/debian-lts-announce/2018/08/msg00018.html
- https://security-tracker.debian.org/tracker/CVE-2018-14767
- https://skalatan.de/blog/advisory-hw-2018-05
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-14767