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CVE-2021-31229

Date: April 15, 2021

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd() performs incorrect memory handling while parsing crafted XML files, which leads to an out-of-bounds write of a one byte constant.

Severity Score

6.5

Related Resources (6)

Url: https://security-tracker.debian.org/tracker/CVE-2021-31229

Url: https://lists.debian.org/debian-lts-announce/2021/07/msg00005.html

Url: https://sourceforge.net/p/ezxml/bugs/26/

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-31229

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-31229

Url: https://www.mend.io/vulnerability-database/CVE-2021-31229

Severity Score

6.5

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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