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CVE-2021-23180

Date: March 2, 2022

A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.

Language: C++

Severity Score

Related Resources (8)

https://github.com/michaelrsweet/htmldoc/issues/418
https://ubuntu.com/security/CVE-2021-23180
https://bugzilla.redhat.com/show_bug.cgi?id=1967041
https://security-tracker.debian.org/tracker/CVE-2021-23180
https://nvd.nist.gov/vuln/detail/CVE-2021-23180
https://github.com/michaelrsweet/htmldoc/commit/19c582fb32eac74b57e155cffbb529377a9e751a
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-23180
https://www.mend.io/vulnerability-database/CVE-2021-23180

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

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

CVSS v2

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

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