CVE-2019-8955

EUVD-2019-18342
In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 83%
Affected Products (NVD)
VendorProductVersion
torprojecttor
𝑥
< 0.3.3.12
torprojecttor
0.3.4.8 ≤
𝑥
< 0.3.4.11
torprojecttor
0.3.4.0:alpha-dev
torprojecttor
0.3.4.1:alpha
torprojecttor
0.3.4.2:alpha
torprojecttor
0.3.4.3:alpha
torprojecttor
0.3.4.4:rc
torprojecttor
0.3.4.5:rc
torprojecttor
0.3.4.6:rc
torprojecttor
0.3.4.7:rc
torprojecttor
0.3.5.0:alpha-dev
torprojecttor
0.3.5.1:alpha
torprojecttor
0.3.5.2:alpha
torprojecttor
0.3.5.3:alpha
torprojecttor
0.3.5.4:alpha
torprojecttor
0.3.5.5:alpha
torprojecttor
0.3.5.6:rc
torprojecttor
0.3.5.7
torprojecttor
0.4.0.1:alpha
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
tor
bookworm
0.4.7.16-1
fixed
bookworm (security)
0.4.7.16-1
fixed
bullseye
0.4.5.16-1
fixed
bullseye (security)
0.4.5.16-1
fixed
jessie
not-affected
sid
0.4.8.13-2
fixed
stretch
not-affected
trixie
0.4.8.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
tor
bionic
Fixed 0.3.2.10-1ubuntu0.2~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
not-affected
xenial
not-affected