CVE-2021-21375

EUVD-2021-8685
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
GitHub_MCNA
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
Affected Products (NVD)
VendorProductVersion
teluupjsip
𝑥
≤ 2.10
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ring
bookworm
20230206.0~ds2-1.1
fixed
bullseye
20210112.2.b757bac~ds1-1
fixed
bullseye (security)
20210112.2.b757bac~ds1-1+deb11u1
fixed
sid
20231201.0~ds1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pjproject
bionic
needs-triage
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
needs-triage