VulnerabilityModified
CVE-2020-27507
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.
CRITICAL 9.8EPSS 1.18%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.18% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- kamailio/kamailio
- Source
- cve@mitre.org
References
- https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685fPatch
- https://github.com/kamailio/kamailio/issues/2503Exploit, Issue Tracking
- https://lists.debian.org/debian-lts-announce/2023/05/msg00030.html
- https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685fPatch
- https://github.com/kamailio/kamailio/issues/2503Exploit, Issue Tracking
- https://lists.debian.org/debian-lts-announce/2023/05/msg00030.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.