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CVE-2021-30485

Date: April 11, 2021

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.

Severity Score

Related Resources (6)

https://lists.debian.org/debian-lts-announce/2021/07/msg00005.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-30485
https://nvd.nist.gov/vuln/detail/CVE-2021-30485
https://security-tracker.debian.org/tracker/CVE-2021-30485
https://sourceforge.net/p/ezxml/bugs/25/
https://www.mend.io/vulnerability-database/CVE-2021-30485

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
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:
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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