HTMLDoc 1.9.15 html.cxx write_header heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in HTMLDoc 1.9.15 and classified as critical. This vulnerability affects the function write_header of the file /htmldoc/htmldoc/html.cxx. Such manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2022-34033. No exploit exists.

Detailsinfo

A vulnerability was found in HTMLDoc 1.9.15 and classified as critical. Affected by this issue is the function write_header of the file /htmldoc/htmldoc/html.cxx. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

HTMLDoc v1.9.15 was discovered to contain a heap overflow via (write_header) /htmldoc/htmldoc/html.cxx:273.

The weakness was disclosed 07/19/2022 as 425. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-34033 since 06/20/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 214518 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : HTMLDOC vulnerabilities (USN-7225-1)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (214518). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• HTMLDoc

Version

• 1.9.15

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 214518
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : HTMLDOC vulnerabilities (USN-7225-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

06/20/2022 🔍
07/19/2022 +29 days 🔍
07/19/2022 +0 days 🔍
01/23/2025 +919 days 🔍

Sourcesinfo

Advisory: 425
Status: Confirmed

CVE: CVE-2022-34033 (🔍)
GCVE (CVE): GCVE-0-2022-34033
GCVE (VulDB): GCVE-100-204152

Entryinfo

Created: 07/19/2022 10:01
Updated: 01/23/2025 14:02
Changes: 07/19/2022 10:01 (39), 08/06/2022 11:14 (1), 08/06/2022 11:21 (11), 01/23/2025 14:02 (20)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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