cURL/libcURL up to 8.6.0 HTTP/2 memory leak

Summaryinfo

A vulnerability labeled as problematic has been found in cURL and libcURL. Affected by this vulnerability is an unknown functionality of the component HTTP2 Handler. Such manipulation leads to memory leak. This vulnerability is referenced as CVE-2024-2398. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in cURL and libcURL and classified as problematic. Affected by this issue is an unknown part of the component HTTP2 Handler. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. CVE summarizes:

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

The weakness was published by W0x42. The advisory is available at curl.se. This vulnerability is handled as CVE-2024-2398 since 03/12/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 215727 (Azure Linux 3.0 Security Update: curl (CVE-2024-2398)), 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 (215727). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Network Utility Software

Name

• cURL
• libcURL

Version

• 7.44.0
• 7.45.0
• 7.46.0
• 7.47.0
• 7.47.1
• 7.48.0
• 7.49.0
• 7.49.1
• 7.50.0
• 7.50.1
• 7.50.2
• 7.50.3
• 7.51.0
• 7.52.0
• 7.52.1
• 7.53.0
• 7.53.1
• 7.54.0
• 7.54.1
• 7.55.0
• 7.55.1
• 7.56.0
• 7.56.1
• 7.57.0
• 7.58.0
• 7.59.0
• 7.60.0
• 7.61.0
• 7.61.1
• 7.62.0
• 7.63.0
• 7.64.0
• 7.64.1
• 7.65.0
• 7.65.1
• 7.65.2
• 7.65.3
• 7.66.0
• 7.67.0
• 7.68.0
• 7.69.0
• 7.69.1
• 7.70.0
• 7.71.0
• 7.71.1
• 7.72.0
• 7.73.0
• 7.74.0
• 7.75.0
• 7.76.0
• 7.76.1
• 7.77.0
• 7.78.0
• 7.79.0
• 7.79.1
• 7.80.0
• 7.81.0
• 7.82.0
• 7.83.0
• 7.83.1
• 7.84.0
• 7.85.0
• 7.86.0
• 7.87.0
• 7.88.0
• 7.88.1
• 8.0.0
• 8.0.1
• 8.1.0
• 8.1.1
• 8.1.2
• 8.2.0
• 8.2.1
• 8.3.0
• 8.4.0
• 8.5.0
• 8.6.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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