CVE-2018-20843

In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
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
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 90%
VendorProductVersion
libexpat_projectlibexpat
𝑥
< 2.2.7
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
canonicalubuntu_linux
19.04
debiandebian_linux
8.0
debiandebian_linux
9.0
opensuseleap
15.0
opensuseleap
15.1
oraclehospitality_res_3700
5.7 ≤
𝑥
≤ 5.7.6
oraclehttp_server
12.1.3.0
oraclehttp_server
12.2.1.4.0
oracleoutside_in_technology
8.5.4
oracleoutside_in_technology
8.5.5
tenablenessus
𝑥
< 8.15.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
expat
bullseye
2.2.10-2+deb11u5
fixed
bullseye (security)
2.2.10-2+deb11u6
fixed
bookworm
2.5.0-1
fixed
bookworm (security)
2.5.0-1+deb12u1
fixed
sid
2.6.3-2
fixed
trixie
2.6.3-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
not-affected
apr-util
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
not-affected
audacity
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
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
xenial
not-affected
trusty
dne
ayttm
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
needs-triage
trusty
dne
cableswig
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
needs-triage
trusty
dne
cadaver
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needs-triage
xenial
needs-triage
trusty
dne
cmake
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
coin3
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
ignored
focal
not-affected
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needed
xenial
needed
trusty
needed
expat
noble
Fixed 2.2.6-2
released
mantic
Fixed 2.2.6-2
released
lunar
Fixed 2.2.6-2
released
kinetic
Fixed 2.2.6-2
released
jammy
Fixed 2.2.6-2
released
impish
Fixed 2.2.6-2
released
hirsute
Fixed 2.2.6-2
released
groovy
Fixed 2.2.6-2
released
focal
Fixed 2.2.6-2
released
eoan
Fixed 2.2.6-2
released
disco
Fixed 2.2.6-1ubuntu0.19.04
released
cosmic
Fixed 2.2.6-1ubuntu0.18.10
released
bionic
Fixed 2.2.5-3ubuntu0.1
released
xenial
Fixed 2.1.0-7ubuntu0.16.04.4
released
trusty
Fixed 2.1.0-4ubuntu1.4+esm1
released
firefox
noble
not-affected
mantic
not-affected
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
ignored
cosmic
ignored
bionic
not-affected
xenial
not-affected
trusty
dne
gdcm
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
not-affected
ghostscript
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
insighttoolkit
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
needs-triage
trusty
dne
insighttoolkit4
noble
dne
mantic
dne
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
not-affected
xenial
needed
trusty
dne
kompozer
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
libparagui1.1
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
libxmltok
noble
needed
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
Fixed 1.2-4ubuntu0.22.04.1~esm1
released
impish
ignored
hirsute
ignored
focal
Fixed 1.2-4ubuntu0.20.04.1~esm1
released
bionic
Fixed 1.2-4ubuntu0.18.04.1~esm1
released
xenial
Fixed 1.2-3ubuntu0.16.04.1~esm2
released
trusty
ignored
matanza
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needs-triage
xenial
needs-triage
trusty
dne
poco
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
not-affected
simgear
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
sitecopy
noble
dne
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
smart
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
not-affected
disco
not-affected
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
swish-e
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needs-triage
xenial
needs-triage
trusty
dne
tdom
noble
not-affected
mantic
not-affected
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
ignored
bionic
not-affected
xenial
not-affected
trusty
dne
texlive-bin
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
thunderbird
noble
not-affected
mantic
not-affected
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
ignored
cosmic
ignored
bionic
not-affected
xenial
not-affected
trusty
dne
vnc4
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
not-affected
disco
not-affected
cosmic
ignored
bionic
needed
xenial
needed
trusty
needed
vtk
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
Fixed 5.10.1+dfsg-2.1ubuntu0.1~esm1
released
trusty
Fixed 5.8.0-14.1ubuntu3+esm1
released
wbxml2
noble
not-affected
mantic
not-affected
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
not-affected
xenial
not-affected
trusty
dne
wxwidgets2.6
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
wxwidgets2.8
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
xmlrpc-c
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage
References