libcurl's URL API function
[curl_url_get()](https://curl.se/libcurl/c/curl_url_get.html) offers punycode
conversions, to and from IDN. Asking to convert a name that is exactly 256
bytes, libcurl ends up reading outside of a stack based buffer when built to
use the *macidn* IDN backend. The conversion function then fills up the
provided buffer exactly - but does not null terminate the string.
This flaw can lead to stack contents accidently getting returned as part of
the converted string.
References
| Link | Resource |
|---|---|
| https://curl.se/docs/CVE-2024-6874.json | Vendor Advisory |
| https://curl.se/docs/CVE-2024-6874.html | Vendor Advisory |
| https://hackerone.com/reports/2604391 | Exploit Issue Tracking Technical Description |
| http://www.openwall.com/lists/oss-security/2024/07/24/2 | Mailing List Third Party Advisory |
Configurations
History
10 Sep 2024, 15:27
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-125 | |
| CPE | cpe:2.3:a:haxx:libcurl:8.8.0:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.3 |
| References | () https://curl.se/docs/CVE-2024-6874.json - Vendor Advisory | |
| References | () https://curl.se/docs/CVE-2024-6874.html - Vendor Advisory | |
| References | () https://hackerone.com/reports/2604391 - Exploit, Issue Tracking, Technical Description | |
| References | () http://www.openwall.com/lists/oss-security/2024/07/24/2 - Mailing List, Third Party Advisory | |
| First Time |
Haxx libcurl
Haxx |
24 Jul 2024, 09:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-07-24 08:15
Updated : 2024-09-10 15:27
NVD link : CVE-2024-6874
Mitre link : CVE-2024-6874
JSON object : View
Products Affected
haxx
- libcurl
CWE
CWE-125
Out-of-bounds Read