CVE-2023-38039

7.5 HIGH
Published: September 15, 2023 Modified: December 02, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/17
Source: support@hackerone.com
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/34
Source: support@hackerone.com
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/37
Source: support@hackerone.com
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/38
Source: support@hackerone.com
Mailing List Third Party Advisory
https://hackerone.com/reports/2072338
Source: support@hackerone.com
Exploit Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/202310-12
Source: support@hackerone.com
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0005/
Source: support@hackerone.com
Third Party Advisory
https://support.apple.com/kb/HT214036
Source: support@hackerone.com
Third Party Advisory
https://support.apple.com/kb/HT214057
Source: support@hackerone.com
Third Party Advisory
https://support.apple.com/kb/HT214058
Source: support@hackerone.com
Third Party Advisory
https://support.apple.com/kb/HT214063
Source: support@hackerone.com
Third Party Advisory
https://www.insyde.com/security-pledge/SA-2023064
Source: support@hackerone.com
Third Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/17
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/34
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/37
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/38
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://hackerone.com/reports/2072338
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/202310-12
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0005/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://support.apple.com/kb/HT214036
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://support.apple.com/kb/HT214057
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://support.apple.com/kb/HT214058
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://support.apple.com/kb/HT214063
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.insyde.com/security-pledge/SA-2023064
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

30 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
14.5%
94th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

microsoft haxx fedoraproject