CVE-2016-4472

Published: 18 May 2016

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.

Notes

Author	Note
mdeslaur	fixed in USN-2983-1 in the CVE-2015-1283-refix.patch patch
ebarretto	tla uses system expat as of 1.3.5+dfsg-15

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
poco Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Not vulnerable (uses system expat)
	wily	Not vulnerable (uses system expat)
	xenial	Not vulnerable (uses system expat)
	yakkety	Not vulnerable (uses system expat)
	zesty	Not vulnerable (uses system expat)
	artful	Not vulnerable (uses system expat)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	groovy	Not vulnerable (uses system expat)
	precise	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
sitecopy Launchpad, Ubuntu, Debian	artful	Ignored (end of life)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	groovy	Not vulnerable (uses system expat)
	precise	Ignored (end of life)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
	trusty	Does not exist (trusty was needed)
	upstream	Not vulnerable (uses system expat)
	wily	Ignored (end of life)
	xenial	Not vulnerable (uses system expat)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
libparagui1.1 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Does not exist
	groovy	Does not exist
	precise	Ignored (end of life)
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	wily	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
cadaver Launchpad, Ubuntu, Debian	artful	Ignored (end of life)
	groovy	Ignored (end of life)
	jammy	Needed
	kinetic	Ignored (end of life, was needed)
	impish	Ignored (end of life)
	xenial	Needed
	precise	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	hirsute	Ignored (end of life)
	lunar	Needed
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
ayttm Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Does not exist (trusty was needed)
	wily	Ignored (end of life)
	yakkety	Ignored (end of life)
	zesty	Does not exist
	artful	Does not exist
	bionic	Does not exist
	impish	Does not exist
	hirsute	Does not exist
	groovy	Does not exist
	xenial	Needed
	precise	Ignored (end of life)
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
audacity Launchpad, Ubuntu, Debian	trusty	Does not exist (trusty was not-affected [uses system expat])
	artful	Not vulnerable (uses system expat)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	groovy	Not vulnerable (uses system expat)
	kinetic	Ignored (end of life, was needs-triage)
	precise	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	lunar	Needs triage
	upstream	Needs triage
	wily	Not vulnerable (uses system expat)
	xenial	Not vulnerable (uses system expat)
	yakkety	Not vulnerable (uses system expat)
	zesty	Not vulnerable (uses system expat)
smart Launchpad, Ubuntu, Debian	focal	Does not exist
	groovy	Does not exist
	artful	Not vulnerable (code-not-compiled)
	bionic	Not vulnerable (code-not-compiled)
	cosmic	Not vulnerable (code-not-compiled)
	disco	Not vulnerable (code-not-compiled)
	eoan	Not vulnerable (code-not-compiled)
	wily	Not vulnerable (code-not-compiled)
	xenial	Not vulnerable (code-not-compiled)
	yakkety	Not vulnerable (code-not-compiled)
	zesty	Not vulnerable (code-not-compiled)
	precise	Not vulnerable (code-not-compiled)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist (trusty was ignored [code-not-compiled])
	upstream	Needs triage
vtk Launchpad, Ubuntu, Debian	trusty	Not vulnerable (uses system expat)
	groovy	Does not exist
	precise	Ignored (end of life)
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Not vulnerable (uses system expat)
	yakkety	Does not exist
	zesty	Does not exist
expat Launchpad, Ubuntu, Debian	impish	Not vulnerable (2.1.1-1ubuntu1)
	hirsute	Not vulnerable (2.1.1-1ubuntu1)
	groovy	Not vulnerable (2.1.1-1ubuntu1)
	kinetic	Not vulnerable (2.1.1-1ubuntu1)
	lunar	Not vulnerable (2.1.1-1ubuntu1)
	artful	Not vulnerable (2.1.1-1ubuntu1)
	bionic	Not vulnerable (2.1.1-1ubuntu1)
	cosmic	Not vulnerable (2.1.1-1ubuntu1)
	disco	Not vulnerable (2.1.1-1ubuntu1)
	eoan	Not vulnerable (2.1.1-1ubuntu1)
	focal	Not vulnerable (2.1.1-1ubuntu1)
	jammy	Not vulnerable (2.1.1-1ubuntu1)
	precise	Not vulnerable (2.0.1-7.2ubuntu1.3)
	trusty	Not vulnerable (2.1.0-4ubuntu1.2)
	upstream	Needs triage
	wily	Not vulnerable (2.1.0-7ubuntu0.15.10.1)
	xenial	Not vulnerable (2.1.0-7ubuntu0.16.04.1)
	yakkety	Not vulnerable (2.1.1-1ubuntu1)
	zesty	Not vulnerable (2.1.1-1ubuntu1)
	Patches: upstream: https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde
tla Launchpad, Ubuntu, Debian	impish	Not vulnerable (1.3.5+dfsg-15)
	groovy	Not vulnerable (1.3.5+dfsg-15)
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Not vulnerable (1.3.5+dfsg-15)
	cosmic	Not vulnerable (1.3.5+dfsg-15)
	disco	Not vulnerable (1.3.5+dfsg-15)
	eoan	Not vulnerable (1.3.5+dfsg-15)
	focal	Not vulnerable (1.3.5+dfsg-15)
	hirsute	Not vulnerable (1.3.5+dfsg-15)
	jammy	Not vulnerable (1.3.5+dfsg-15)
	kinetic	Not vulnerable (1.3.5+dfsg-15)
	lunar	Not vulnerable (1.3.5+dfsg-15)
	trusty	Does not exist (trusty was not-affected [1.3.5+dfsg-15])
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Not vulnerable (1.3.5+dfsg-15)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
coin3 Launchpad, Ubuntu, Debian	groovy	Ignored (end of life)
	kinetic	Ignored (end of life, was needed)
	impish	Ignored (end of life)
	xenial	Needed
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	hirsute	Ignored (end of life)
	jammy	Needed
	lunar	Needed
	trusty	Needed
	upstream	Needs triage
	wily	Ignored (end of life)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
matanza Launchpad, Ubuntu, Debian	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needed)
	impish	Ignored (end of life)
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	jammy	Needed
	lunar	Needed
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Needed
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
swish-e Launchpad, Ubuntu, Debian	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needed)
	impish	Ignored (end of life)
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	jammy	Needed
	lunar	Needed
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Needed
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
xmlrpc-c Launchpad, Ubuntu, Debian	groovy	Ignored (end of life)
	hirsute	Ignored (end of life)
	kinetic	Ignored (end of life, was needed)
	precise	Released (1.16.33-3.1ubuntu5.2)
	lunar	Needed
	artful	Ignored (end of life)
	bionic	Needed
	cosmic	Ignored (end of life)
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needed
	impish	Ignored (end of life)
	jammy	Needed
	trusty	Needed
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Needed
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
wxwidgets2.8 Launchpad, Ubuntu, Debian	groovy	Does not exist
	kinetic	Does not exist
	precise	Ignored (end of life)
	lunar	Does not exist
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist (trusty was not-affected [uses system expat])
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
wxwidgets2.6 Launchpad, Ubuntu, Debian	groovy	Does not exist
	precise	Ignored (end of life)
	lunar	Does not exist
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	wily	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
vnc4 Launchpad, Ubuntu, Debian	groovy	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Ignored
	cosmic	Ignored
	disco	Ignored
	eoan	Ignored
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	kinetic	Does not exist
	trusty	Ignored
	upstream	Ignored
	wily	Ignored (end of life)
	xenial	Ignored
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
wbxml2 Launchpad, Ubuntu, Debian	groovy	Not vulnerable (uses system expat)
	precise	Ignored (end of life)
	artful	Ignored (end of life)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
	trusty	Does not exist (trusty was needed)
	upstream	Not vulnerable (uses system expat)
	wily	Ignored (end of life)
	xenial	Not vulnerable (uses system expat)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
kompozer Launchpad, Ubuntu, Debian	groovy	Does not exist
	precise	Ignored (end of life)
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	wily	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
insighttoolkit Launchpad, Ubuntu, Debian	groovy	Does not exist
	precise	Ignored (end of life)
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Needed
	yakkety	Does not exist
	zesty	Does not exist
gdcm Launchpad, Ubuntu, Debian	groovy	Not vulnerable (uses system expat)
	precise	Not vulnerable (uses system expat)
	artful	Not vulnerable (uses system expat)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
	trusty	Not vulnerable (uses system expat)
	upstream	Needs triage
	wily	Not vulnerable (uses system expat)
	xenial	Not vulnerable (uses system expat)
	yakkety	Not vulnerable (uses system expat)
	zesty	Not vulnerable (uses system expat)
cableswig Launchpad, Ubuntu, Debian	groovy	Does not exist
	xenial	Needed
	precise	Ignored (end of life)
	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	yakkety	Does not exist
	zesty	Does not exist
simgear Launchpad, Ubuntu, Debian	groovy	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	precise	Ignored (end of life)
	artful	Not vulnerable (uses system expat)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	impish	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
	trusty	Does not exist (trusty was not-affected [uses system expat])
	upstream	Needs triage
	wily	Not vulnerable (uses system expat)
	xenial	Not vulnerable (uses system expat)
	yakkety	Not vulnerable (uses system expat)
	zesty	Not vulnerable (uses system expat)
tdom Launchpad, Ubuntu, Debian	groovy	Not vulnerable
	precise	Ignored (end of life)
	cosmic	Not vulnerable
	disco	Not vulnerable
	eoan	Not vulnerable
	focal	Not vulnerable
	hirsute	Not vulnerable
	impish	Not vulnerable
	jammy	Not vulnerable
	kinetic	Not vulnerable
	lunar	Not vulnerable
	artful	Ignored (end of life)
	bionic	Not vulnerable
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage
	wily	Ignored (end of life)
	xenial	Not vulnerable (uses system expat)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
libxmltok Launchpad, Ubuntu, Debian	kinetic	Ignored (end of life, was needed)
	trusty	Ignored (end of standard support)
	bionic	Released (1.2-4ubuntu0.18.04.1~esm1) Available with Ubuntu Pro
	focal	Released (1.2-4ubuntu0.20.04.1~esm1) Available with Ubuntu Pro
	hirsute	Ignored (end of life)
	impish	Ignored (end of life)
	jammy	Released (1.2-4ubuntu0.22.04.1~esm1) Available with Ubuntu Pro
	lunar	Needed
	upstream	Needs triage
	xenial	Released (1.2-3ubuntu0.16.04.1~esm2) Available with Ubuntu Pro
xotcl Launchpad, Ubuntu, Debian	artful	Not vulnerable (uses system expat)
	bionic	Not vulnerable (uses system expat)
	cosmic	Not vulnerable (uses system expat)
	disco	Not vulnerable (uses system expat)
	eoan	Not vulnerable (uses system expat)
	focal	Not vulnerable (uses system expat)
	groovy	Not vulnerable (uses system expat)
	hirsute	Not vulnerable (uses system expat)
	wily	Not vulnerable (uses system expat)
	xenial	Not vulnerable (uses system expat)
	yakkety	Not vulnerable (uses system expat)
	zesty	Not vulnerable (uses system expat)
	precise	Ignored (end of life)
	impish	Not vulnerable (uses system expat)
	jammy	Not vulnerable (uses system expat)
	kinetic	Not vulnerable (uses system expat)
	lunar	Not vulnerable (uses system expat)
	trusty	Does not exist (trusty was needed)
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	8.1
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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