CVE-2021-26220

2021-02-0800:00:00

ubuntu.com

ezxml vulnerability oob write xml file memory pool bug unix cve-2021-26220

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

47.4%

JSON

The ezxml_toxml function in ezxml 0.8.6 and earlier is vulnerable to OOB
write when opening XML file after exhausting the memory pool.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchmapcache< anyUNKNOWN
ubuntu20.04noarchmapcache< anyUNKNOWN
ubuntu22.04noarchmapcache< anyUNKNOWN
ubuntu24.04noarchmapcache< anyUNKNOWN
ubuntu16.04noarchmapcache< anyUNKNOWN
ubuntu18.04noarchnetcdf< anyUNKNOWN
ubuntu20.04noarchnetcdf< anyUNKNOWN
ubuntu22.04noarchnetcdf< anyUNKNOWN
ubuntu24.04noarchnetcdf< anyUNKNOWN
ubuntu14.04noarchnetcdf< 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	netcdf	< any	UNKNOWN
ubuntu	20.04	noarch	netcdf	< any	UNKNOWN
ubuntu	22.04	noarch	netcdf	< any	UNKNOWN
ubuntu	24.04	noarch	netcdf	< any	UNKNOWN
ubuntu	14.04	noarch	netcdf	< any	UNKNOWN