CVE-2018-20843
Published: 24 June 2019
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).
From the Ubuntu security team
It was discovered that the expat library in XXX-PACKAGE-NAME-HERE-XXX incorrectly handled certain XML files. An attacker could possibly use this issue to cause a denial of service.
Priority
Low
CVSS 3 base score: 7.5
Status
| Package | Release | Status |
|---|---|---|
|
apache2 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code-not-compiled)
|
|
|
apr-util Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code-not-compiled)
|
|
|
audacity Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
ayttm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
cableswig Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
cadaver Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needs triage
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needs triage
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needs triage
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needs triage
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
cmake Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
coin3 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needed
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needed
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needed
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|
|
|
expat Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.2.6-2)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(2.2.6-2)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Released
(2.2.6-2)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(2.2.6-2)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(2.2.5-3ubuntu0.1)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Released
(2.1.0-7ubuntu0.16.04.4)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(2.1.0-4ubuntu1.4+esm1)
|
|
|
Patches: Upstream: https://github.com/libexpat/libexpat/commit/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6 |
||
|
firefox Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
gdcm Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(uses system expat)
|
|
|
ghostscript Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
insighttoolkit Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
insighttoolkit4 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
kompozer Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
libparagui1.1 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
matanza Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needs triage
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needs triage
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needs triage
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needs triage
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
paraview Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
poco Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(uses system expat)
|
|
|
simgear Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
sitecopy Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(uses system expat)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
smart Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
swish-e Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needs triage
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needs triage
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needs triage
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needs triage
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
tdom Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
texlive-bin Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(code-not-compiled)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
vnc4 Launchpad, Ubuntu, Debian |
Upstream |
Needed
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needed
|
|
|
vtk Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
wbxml2 Launchpad, Ubuntu, Debian |
Upstream |
Not vulnerable
(uses system expat)
|
| Ubuntu 21.04 (Hirsute Hippo) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(uses system expat)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
wxwidgets2.6 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
wxwidgets2.8 Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Does not exist
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Does not exist
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Does not exist
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
xmlrpc-c Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needs triage
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needs triage
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needs triage
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needs triage
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
|
|
xotcl Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 21.04 (Hirsute Hippo) |
Needs triage
|
|
| Ubuntu 20.10 (Groovy Gorilla) |
Needs triage
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Needs triage
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Needs triage
|
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Notes
| Author | Note |
|---|---|
| mdeslaur | xmlparse.c doesn't appear to be built in the firefox package |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20843
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226
- https://github.com/libexpat/libexpat/pull/262
- https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes
- https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6
- https://usn.ubuntu.com/usn/usn-4040-1
- https://usn.ubuntu.com/usn/usn-4040-2
- NVD
- Launchpad
- Debian