GNU C Library up to 2.34 sunrpc clnt_create Hostname buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in GNU C Library up to 2.34. Impacted is the function clnt_create of the component sunrpc Module. Executing a manipulation of the argument Hostname can lead to buffer overflow. This vulnerability is registered as CVE-2022-23219. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in GNU C Library up to 2.34 (Software Library). This vulnerability affects the function clnt_create of the component sunrpc Module. The manipulation of the argument hostname 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 published 01/14/2022. The advisory is shared for download at sourceware.org. This vulnerability was named CVE-2022-23219 since 01/14/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 239848 (TencentOS Server 3: glibc (TSSA-2022:0203)), 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 (239848). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Software Library

Vendor

• GNU

Name

• C Library

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33
• 2.34

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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