GNU libmicrohttpd up to 0.9.70 post_process_urlencoded buffer overflow

Summaryinfo

A vulnerability was found in GNU libmicrohttpd up to 0.9.70. It has been declared as critical. The impacted element is the function post_process_urlencoded. Executing a manipulation can lead to buffer overflow. This vulnerability is tracked as CVE-2021-3466. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU libmicrohttpd up to 0.9.70 (Web Server). It has been declared as critical. This vulnerability affects the function post_process_urlencoded. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 03/26/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2021-3466. There are known technical details, but no exploit is available.

Upgrading to version 0.9.71 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Web Server

Vendor

• GNU

Name

• libmicrohttpd

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9
• 0.9.10
• 0.9.11
• 0.9.12
• 0.9.13
• 0.9.14
• 0.9.15
• 0.9.16
• 0.9.17
• 0.9.18
• 0.9.19
• 0.9.20
• 0.9.21
• 0.9.22
• 0.9.23
• 0.9.24
• 0.9.25
• 0.9.26
• 0.9.27
• 0.9.28
• 0.9.29
• 0.9.30
• 0.9.31
• 0.9.32
• 0.9.33
• 0.9.34
• 0.9.35
• 0.9.36
• 0.9.37
• 0.9.38
• 0.9.39
• 0.9.40
• 0.9.41
• 0.9.42
• 0.9.43
• 0.9.44
• 0.9.45
• 0.9.46
• 0.9.47
• 0.9.48
• 0.9.49
• 0.9.50
• 0.9.51
• 0.9.52
• 0.9.53
• 0.9.54
• 0.9.55
• 0.9.56
• 0.9.57
• 0.9.58
• 0.9.59
• 0.9.60
• 0.9.61
• 0.9.62
• 0.9.63
• 0.9.64
• 0.9.65
• 0.9.66
• 0.9.67
• 0.9.68
• 0.9.69
• 0.9.70

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

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CPE 2.2info

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