CVE-2022-35260
Published: August 31, 2023Last modified: August 31, 2023
Description
curl can be told to parse a `.netrc` file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | curl | Not affected (8.2.1-r0) |
| Stream | curl | Not affected (8.2.1-r0) |
References
- http://seclists.org/fulldisclosure/2023/Jan/19
- http://seclists.org/fulldisclosure/2023/Jan/20
- https://hackerone.com/reports/1721098
- https://security.gentoo.org/glsa/202212-01
- https://security.netapp.com/advisory/ntap-20230110-0006/
- https://support.apple.com/kb/HT213604
- https://support.apple.com/kb/HT213605