CVE-2024-2398

Publication date 27 March 2024

Last updated 30 May 2025


Ubuntu priority

Cvss 3 Severity Score

8.6 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
curl 25.04 plucky
Fixed 8.5.0-2ubuntu10.1
24.10 oracular
Fixed 8.5.0-2ubuntu10.1
24.04 LTS noble
Fixed 8.5.0-2ubuntu10.1
23.10 mantic
Fixed 8.2.1-1ubuntu3.3
22.04 LTS jammy
Fixed 7.81.0-1ubuntu1.16
20.04 LTS focal
Fixed 7.68.0-1ubuntu2.22
18.04 LTS bionic
Fixed 7.58.0-2ubuntu3.24+esm4
16.04 LTS xenial
Fixed 7.47.0-1ubuntu2.19+esm12
14.04 LTS trusty
Not affected

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro 30-day free trial

Notes


mdeslaur

affects curl 7.44.0 to and including 8.6.0 introduced in https://github.com/curl/curl/commit/ea7134ac874a66107e54ff9

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

Parameter Value
Base score 8.6 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

References

Related Ubuntu Security Notices (USN)

Other references