CVE-2017-5637

Two four letter word commands "wchp/wchc" are CPU intensive and could cause spike of CPU utilization on Apache ZooKeeper server if abused, which leads to the server unable to serve legitimate client requests. Apache ZooKeeper thru version 3.4.9 and 3.5.2 suffer from this issue, fixed in 3.4.10, 3.5.3, and later.
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:N/A:H
apacheCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
VendorProductVersion
apachezookeeper
3.4.0
apachezookeeper
3.4.1
apachezookeeper
3.4.2
apachezookeeper
3.4.3
apachezookeeper
3.4.4
apachezookeeper
3.4.5
apachezookeeper
3.4.6
apachezookeeper
3.4.7
apachezookeeper
3.4.8
apachezookeeper
3.4.9
apachezookeeper
3.5.0
apachezookeeper
3.5.1
apachezookeeper
3.5.2
debiandebian_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
zookeeper
bullseye (security)
3.4.13-6+deb11u1
fixed
bullseye
3.4.13-6+deb11u1
fixed
bookworm
3.8.0-11+deb12u1
fixed
bookworm (security)
3.8.0-11+deb12u1
fixed
sid
3.9.2-2
fixed
trixie
3.9.2-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
zookeeper
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
not-affected
artful
ignored
zesty
ignored
yakkety
ignored
xenial
Fixed 3.4.8-1ubuntu0.1~esm1
released
trusty
Fixed 3.4.5+dfsg-1ubuntu0.1~esm1
released
References