CVE-2021-30485

2021-04-1100:00:00

ubuntu.com

libezxml null-pointer-deference xml-parsing-issue crafted-xml-file memory-handling-bug bugs-debian-unix

CVSS2

4.3

Attack Vector

NETWORK

Attack 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

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

38.1%

JSON

An issue was discovered in libezxml.a in ezXML 0.8.6. The function
ezxml_internal_dtd(), while parsing a crafted XML file, performs incorrect
memory handling, leading to a NULL pointer dereference while running
strcmp() on a NULL pointer.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchmapcache< anyUNKNOWN
ubuntu20.04noarchmapcache< anyUNKNOWN
ubuntu22.04noarchmapcache< anyUNKNOWN
ubuntu24.04noarchmapcache< anyUNKNOWN
ubuntu16.04noarchmapcache< anyUNKNOWN
ubuntu18.04noarchnavit< anyUNKNOWN
ubuntu20.04noarchnavit< anyUNKNOWN
ubuntu22.04noarchnavit< anyUNKNOWN
ubuntu24.04noarchnavit< anyUNKNOWN
ubuntu16.04noarchnavit< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	mapcache	< any	UNKNOWN
ubuntu	20.04	noarch	mapcache	< any	UNKNOWN
ubuntu	22.04	noarch	mapcache	< any	UNKNOWN
ubuntu	24.04	noarch	mapcache	< any	UNKNOWN
ubuntu	16.04	noarch	mapcache	< any	UNKNOWN
ubuntu	18.04	noarch	navit	< any	UNKNOWN
ubuntu	20.04	noarch	navit	< any	UNKNOWN
ubuntu	22.04	noarch	navit	< any	UNKNOWN
ubuntu	24.04	noarch	navit	< any	UNKNOWN
ubuntu	16.04	noarch	navit	< any	UNKNOWN