CVE-2021-43845

EUVD-2021-30716
PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
GitHub_MCNA
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 51%
Affected Products (NVD)
VendorProductVersion
teluupjsip
𝑥
≤ 2.11.1
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
asterisk
bullseye
1:16.28.0~dfsg-0+deb11u4
fixed
bullseye (security)
1:16.28.0~dfsg-0+deb11u5
fixed
sid
1:22.0.0~dfsg+~cs6.14.60671435-1
fixed
stretch
not-affected
ring
bookworm
20230206.0~ds2-1.1
fixed
bullseye
vulnerable
bullseye (security)
20210112.2.b757bac~ds1-1+deb11u1
fixed
sid
20231201.0~ds1-1
fixed
stretch
not-affected
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
asterisk
bionic
needs-triage
focal
needs-triage
impish
ignored
jammy
needs-triage
kinetic
ignored
lunar
ignored
mantic
ignored
noble
needs-triage
trusty
ignored
xenial
needs-triage
pjproject
bionic
needs-triage
trusty
ignored
xenial
needs-triage
ring
bionic
Fixed 20180228.1.503da2b~ds1-1ubuntu0.1~esm1
released
focal
Fixed 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1
released
impish
ignored
lunar
not-affected
mantic
not-affected
noble
dne
trusty
ignored
xenial
ignored