Description
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.
Affected products
haxx: curl; apple: macos; fedoraproject: fedora; netapp: active iq unified manager; netapp: ontap select deploy administration utility; netapp: brocade fabric operating system; netapp: bootstrap os; netapp: hci compute node; netapp: h300s firmware; netapp: h300s; netapp: h410s firmware; netapp: h410s; netapp: h500s firmware; netapp: h500s; netapp: h610c firmware
References10
- curl.se/docs/CVE-2024-2398.html Vendor Advisory
- curl.se/docs/CVE-2024-2398.json Vendor Advisory
- support.apple.com/kb/HT214118 Release NotesVendor Advisory
- support.apple.com/kb/HT214119 Release NotesVendor Advisory
- support.apple.com/kb/HT214120 Release NotesVendor Advisory
- curl.se/docs/CVE-2024-2398.html Vendor Advisory
- curl.se/docs/CVE-2024-2398.json Vendor Advisory
- support.apple.com/kb/HT214118 Release NotesVendor Advisory
- support.apple.com/kb/HT214119 Release NotesVendor Advisory
- support.apple.com/kb/HT214120 Release NotesVendor Advisory
Metrics
- CVSS 3.1
-
8.6
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - EPSS — exploit probability
- 36% percentile: 98 · as of 5 November 2026
- CWE
- CWE-772
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