CVE-2023-38039
Published: September 15, 2023Last modified: October 13, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | curl | Fixed (8.4.0-r0) |
| Stream | curl | Fixed (8.4.0-r0) |
References
- 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://curl.se/docs/CVE-2023-38039.html
- https://hackerone.com/reports/2072338
- https://lists.fedoraproject.org/archives/list/[email protected]/message/5DCZMYODALBLVOXVJEN2LF2MLANEYL4F/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/M6KGKB2JNZVT276JYSKI6FV2VFJUGDOJ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TEAWTYHC3RT6ZRS5OZRHLAIENVN6CCIS/
- 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