CVE-2025-9086 1
Description
1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with only a slash as path (`path="/"`). Since this site is not secure, the cookie *should* be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| curl | 8.15.0 | No fix stated |
| curl 8.14 | 8.14.0 → 8.14.1 | No fix stated |
| curl | 8.13.0 | No fix stated |
| RUGGEDCOM RST2428P 4.0 | earliest → < 4.0 | 4.0 |
| SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCH328 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM324 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM328 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM332 3.3 | earliest → < 3.3 | 3.3 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SCALANCE XRH334 (24 V DC, 8xFO, CC) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230 V AC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230 V AC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24 V DC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24 V DC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230 V AC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230 V AC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
References
- curl.se curl.se
- curl.se curl.se
- hackerone.com hackerone.com
Timeline
- Published
- Last modified