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FreeBSD : curl -- HTTP headers eat all memory (833b469b-5247-11ee-9667-080027f5fec9)

high Nessus Plugin ID 181521

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 833b469b-5247-11ee-9667-080027f5fec9 advisory.

 - When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory. (CVE-2023-38039)

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

Solution

Update the affected packages.

See Also

https://curl.se/docs/CVE-2023-38039.html%20HERE

http://www.nessus.org/u?7c653979

Plugin Details

Severity: High

ID: 181521

File Name: freebsd_pkg_833b469b524711ee9667080027f5fec9.nasl

Version: 1.3

Type: local

Published: 9/18/2023

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2023-38039

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:curl, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/13/2023

Vulnerability Publication Date: 9/13/2023

Reference Information

CVE: CVE-2023-38039

IAVA: 2023-A-0485-S