CVE-2020-27507
kamailio - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.41%
Description
The Kamailio SIP before 5.5.0 server mishandles INVITE requests with duplicated fields and overlength tag, leading to a buffer overflow that crashes the server or possibly have unspecified other impact.
How to fix CVE-2020-27507
To remediate CVE-2020-27507, upgrade the affected package to a fixed version below.
- Debian/kamailio—upgrade to 5.4.2-1 or later
- —upgrade to 5.2.1-1+deb10u1 or later
Is CVE-2020-27507 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 5.4.2-1
- from 0, < 5.2.1-1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |