htmldoc up to 1.9.11 htmldoc/htmldoc/html.cxx write_node buffer overflow

Summaryinfo

A vulnerability was found in htmldoc up to 1.9.11. It has been classified as critical. This issue affects the function write_node of the file htmldoc/htmldoc/html.cxx. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2021-33235. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in htmldoc up to 1.9.11. This affects the function write_node of the file htmldoc/htmldoc/html.cxx. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability. The summary by CVE is:

Buffer overflow vulnerability in write_node in htmldoc through 1.9.11 allows attackers to cause a denial of service via htmldoc/htmldoc/html.cxx:588.

The weakness was presented 08/16/2022 as 426. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-33235 since 05/20/2021. Technical details of the vulnerability are known, but there is no available exploit.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• htmldoc

Version

• 1.9.0
• 1.9.1
• 1.9.2
• 1.9.3
• 1.9.4
• 1.9.5
• 1.9.6
• 1.9.7
• 1.9.8
• 1.9.9
• 1.9.10
• 1.9.11

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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