CVE-2023-28484

2023-04-1200:00:00

ubuntu.com

libxml2

xsd schemas

null pointer

segfault

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

46.9%

JSON

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead
to a NULL pointer dereference and subsequently a segfault. This occurs in
xmlSchemaFixupComplexType in xmlschemas.c.

Bugs

<https://bugzilla.redhat.com/show_bug.cgi?id=2185994>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibxml2< 2.9.4+dfsg1-6.1ubuntu1.9UNKNOWN
ubuntu20.04noarchlibxml2< 2.9.10+dfsg-5ubuntu0.20.04.6UNKNOWN
ubuntu22.04noarchlibxml2< 2.9.13+dfsg-1ubuntu0.3UNKNOWN
ubuntu22.10noarchlibxml2< 2.9.14+dfsg-1ubuntu0.2UNKNOWN
ubuntu23.04noarchlibxml2< 2.9.14+dfsg-1.1ubuntu0.1UNKNOWN
ubuntu14.04noarchlibxml2< 2.9.1+dfsg1-3ubuntu4.13+esm5UNKNOWN
ubuntu16.04noarchlibxml2< 2.9.3+dfsg1-1ubuntu0.7+esm5UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libxml2	< 2.9.4+dfsg1-6.1ubuntu1.9	UNKNOWN
ubuntu	20.04	noarch	libxml2	< 2.9.10+dfsg-5ubuntu0.20.04.6	UNKNOWN
ubuntu	22.04	noarch	libxml2	< 2.9.13+dfsg-1ubuntu0.3	UNKNOWN
ubuntu	22.10	noarch	libxml2	< 2.9.14+dfsg-1ubuntu0.2	UNKNOWN
ubuntu	23.04	noarch	libxml2	< 2.9.14+dfsg-1.1ubuntu0.1	UNKNOWN
ubuntu	14.04	noarch	libxml2	< 2.9.1+dfsg1-3ubuntu4.13+esm5	UNKNOWN
ubuntu	16.04	noarch	libxml2	< 2.9.3+dfsg1-1ubuntu0.7+esm5	UNKNOWN