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.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 24%
VendorProductVersion
kamailiokamailio
𝑥
< 5.5.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
kamailio
bullseye
5.4.4-1
fixed
bookworm
5.6.3-2
fixed
sid
5.8.3-1
fixed
trixie
5.8.3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kamailio
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
not-affected
jammy
not-affected
focal
Fixed 5.3.2-1ubuntu0.1~esm1
released
bionic
Fixed 5.1.2-1ubuntu2+esm1
released
xenial
Fixed 4.3.4-1.1ubuntu2.1+esm1
released
trusty
dne
Common Weakness Enumeration
References
https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685f
https://github.com/kamailio/kamailio/issues/2503
https://lists.debian.org/debian-lts-announce/2023/05/msg00030.html
https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685f
https://github.com/kamailio/kamailio/issues/2503
https://lists.debian.org/debian-lts-announce/2023/05/msg00030.html