CVE-2024-2398
HIGH severity · CVSS 8.6 · CWE-772
8.6CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactLow
Availability impactLow
Exploit probability (EPSS)36%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://curl.se/docs/CVE-2024-2398.htmlAdvisory
- https://curl.se/docs/CVE-2024-2398.jsonAdvisory
- http://seclists.org/fulldisclosure/2024/Jul/18Advisory
- http://seclists.org/fulldisclosure/2024/Jul/19Advisory
- http://seclists.org/fulldisclosure/2024/Jul/20Advisory
- http://www.openwall.com/lists/oss-security/2024/03/27/3Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2D44YLAUFJU6BZ4XFG2FYV7SBKXB5IZ6/Advisory
- https://hackerone.com/reports/2402845Advisory