CVE-2018-16515

EUVD-2022-3811
Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
Affected Products (NVD)
VendorProductVersion
matrixsynapse
𝑥
< 0.33.3.1
debiandebian_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
matrix-synapse
sid
1.116.0-3
fixed
trixie
1.116.0-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
matrix-synapse
bionic
Fixed 0.24.0+dfsg-1ubuntu0.1~esm1
released
cosmic
ignored
disco
not-affected
eoan
not-affected
focal
not-affected
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
trusty
dne
xenial
dne
Common Weakness Enumeration
References
https://github.com/matrix-org/synapse/issues/3796#event-1833126269
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P/
https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1/
https://github.com/matrix-org/synapse/issues/3796#event-1833126269
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P/
https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1/