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Missing Release of Resource after Effective Lifetime

CVE-2024-2398

High
7.5/10

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. This vulnerability affects curl package versions 7.44.0 through 8.6.0

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-772 - Missing Release Of Resource After Effective Lifetime

'Missing release of resource after effective lifetime' is a weakness that occurs when software doesn't sufficiently release a resource (e.g. memory, CPU, disk space, etc.) after it is used. If not addressed, attackers can launch a denial of service attack (by allocating a resource and not releasing it).

References

Advisory Timeline

  • Published