CVE-2018-12423

In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
matrixsynapse
𝑥
< 0.31.2
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
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
not-affected
disco
not-affected
cosmic
not-affected
bionic
Fixed 0.24.0+dfsg-1ubuntu0.1~esm1
released
artful
ignored
xenial
dne
trusty
dne
References
https://bugs.debian.org/901549
https://github.com/matrix-org/matrix-doc/issues/1304
https://matrix.org/blog/2018/06/14/security-update-synapse-0-31-2/
https://bugs.debian.org/901549
https://github.com/matrix-org/matrix-doc/issues/1304
https://matrix.org/blog/2018/06/14/security-update-synapse-0-31-2/