Detections
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Curl 7.44.0 < 8.7.0 HTTP/2 Push Headers Memory-leak (CVE-2024-2398)

high Nessus Plugin ID 192704

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Synopsis

The remote host has a program that is affected by a memory-leak vulnerability.

Description

The version of Curl installed on the remote host is between 7.44.0 and prior to 8.7.0. It is, therefore, affected by a memory-leak vulnerability. 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.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade Curl to version 8.7.0 or later

See Also

https://curl.se/docs/CVE-2024-2398.html

Plugin Details

Severity: High

ID: 192704

File Name: curl_CVE-2024-2398.nasl

Version: 1.2

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 3/29/2024

Updated: 4/19/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2024-2398

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:haxx:curl

Required KB Items: installed_sw/Curl

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2024

Vulnerability Publication Date: 3/27/2024

Reference Information

CVE: CVE-2024-2398

IAVA: 2024-A-0185