CVE-2023-38039
HIGH 7.5EPSS 58.1%
When curl retrieves an HTTP response, it stores the incoming headers so thatthey can be accessed later via the libcurl headers API.However, curl did not have a limit in how many or how large headers it wouldaccept in a response, allowing a malicious server to stream an endless seriesof headers and eventually cause curl to run out of heap memory.
- Affected
- curl
- CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 58.07% chance of exploitation in the next 30 days, 99th percentile
- Published
- 2023-09-15
- Updated
- 2025-12-02
Proof-of-concept exploits (1)
- Smartkeyss/CVE-2023-380390★ · 2024-05-20
Security advisories
- http://seclists.org/fulldisclosure/2023/Oct/17
- http://seclists.org/fulldisclosure/2024/Jan/34
- http://seclists.org/fulldisclosure/2024/Jan/37
- http://seclists.org/fulldisclosure/2024/Jan/38
- https://hackerone.com/reports/2072338
- https://security.gentoo.org/glsa/202310-12
- https://security.netapp.com/advisory/ntap-20231013-0005
- https://support.apple.com/kb/HT214036
- https://support.apple.com/kb/HT214057
- https://support.apple.com/kb/HT214058
- https://support.apple.com/kb/HT214063
- https://www.insyde.com/security-pledge/SA-2023064