CVE-2021-3537

2021-05-1400:00:00

ubuntu.com

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.01 Low

EPSS

Percentile

83.6%

JSON

A vulnerability found in libxml2 in versions before 2.9.11 shows that it
did not propagate errors while parsing XML mixed content, causing a NULL
dereference. If an untrusted XML document was parsed in recovery mode and
post-validated, the flaw could be used to crash the application. The
highest threat from this vulnerability is to system availability.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988123>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibxml2< 2.9.4+dfsg1-6.1ubuntu1.4UNKNOWN
ubuntu20.04noarchlibxml2< 2.9.10+dfsg-5ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchlibxml2< 2.9.10+dfsg-5ubuntu0.20.10.2UNKNOWN
ubuntu21.04noarchlibxml2< 2.9.10+dfsg-6.3ubuntu0.1UNKNOWN
ubuntu14.04noarchlibxml2< 2.9.1+dfsg1-3ubuntu4.13+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlibxml2< 2.9.3+dfsg1-1ubuntu0.7+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libxml2	< 2.9.4+dfsg1-6.1ubuntu1.4	UNKNOWN
ubuntu	20.04	noarch	libxml2	< 2.9.10+dfsg-5ubuntu0.20.04.1	UNKNOWN
ubuntu	20.10	noarch	libxml2	< 2.9.10+dfsg-5ubuntu0.20.10.2	UNKNOWN
ubuntu	21.04	noarch	libxml2	< 2.9.10+dfsg-6.3ubuntu0.1	UNKNOWN
ubuntu	14.04	noarch	libxml2	< 2.9.1+dfsg1-3ubuntu4.13+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	libxml2	< 2.9.3+dfsg1-1ubuntu0.7+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN