CVE-2021-26712

Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 78%
VendorProductVersion
digiumasterisk
13.0.0 ≤
𝑥
≤ 13.38.2
digiumasterisk
16.0.0 ≤
𝑥
< 16.16.1
digiumasterisk
17.0.0 ≤
𝑥
< 17.9.2
digiumasterisk
18.0 ≤
𝑥
< 18.2.1
digiumcertified_asterisk
16.8
digiumcertified_asterisk
16.8:cert1-rc1
digiumcertified_asterisk
16.8:cert1-rc2
digiumcertified_asterisk
16.8:cert1-rc3
digiumcertified_asterisk
16.8:cert1-rc4
digiumcertified_asterisk
16.8:cert2
digiumcertified_asterisk
16.8:cert3
digiumcertified_asterisk
16.8:cert4
digiumcertified_asterisk
16.8:cert4-rc1
digiumcertified_asterisk
16.8:cert4-rc2
digiumcertified_asterisk
16.8:cert4-rc3
digiumcertified_asterisk
16.8:cert4-rc4
digiumcertified_asterisk
16.8:cert5
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
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
asterisk
noble
needed
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needed
impish
ignored
hirsute
ignored
groovy
ignored
focal
needed
bionic
not-affected
xenial
not-affected
trusty
dne