This flaw allows an attacker to insert cookies at will into a running program
using libcurl, if the specific series of conditions are met.
libcurl performs transfers. In its API, an application creates "easy handles"
that are the individual handles for single transfers.
libcurl provides a function call that duplicates en easy handle called
[curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html).
If a transfer has cookies enabled when the handle is duplicated, the
cookie-enable state is also cloned - but without cloning the actual
cookies. If the source handle did not read any cookies from a specific file on
disk, the cloned version of the handle would instead store the file name as
`none` (using the four ASCII letters, no quotes).
Subsequent use of the cloned handle that does not explicitly set a source to
load cookies from would then inadvertently load cookies from a file named
`none` - if such a file exists and is readable in the current directory of the
program using libcurl. And if using the correct file format of course.
References
Configurations
History
13 Feb 2025, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) This flaw allows an attacker to insert cookies at will into a running program using libcurl, if the specific series of conditions are met. libcurl performs transfers. In its API, an application creates "easy handles" that are the individual handles for single transfers. libcurl provides a function call that duplicates en easy handle called [curl_easy_duphandle](https://curl.se/libcurl/c/curl_easy_duphandle.html). If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as `none` (using the four ASCII letters, no quotes). Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named `none` - if such a file exists and is readable in the current directory of the program using libcurl. And if using the correct file format of course. |
21 Nov 2024, 08:13
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://seclists.org/fulldisclosure/2024/Jan/34 - | |
| References | () http://seclists.org/fulldisclosure/2024/Jan/37 - | |
| References | () http://seclists.org/fulldisclosure/2024/Jan/38 - | |
| References | () https://curl.se/docs/CVE-2023-38546.html - Patch, Third Party Advisory | |
| References | () https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868 - | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ - | |
| References | () https://support.apple.com/kb/HT214036 - | |
| References | () https://support.apple.com/kb/HT214057 - | |
| References | () https://support.apple.com/kb/HT214058 - | |
| References | () https://support.apple.com/kb/HT214063 - |
09 Jul 2024, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
26 Jan 2024, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
23 Jan 2024, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
22 Jan 2024, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-10-18 04:15
Updated : 2025-02-13 17:16
NVD link : CVE-2023-38546
Mitre link : CVE-2023-38546
CVE.ORG link : CVE-2023-38546
JSON object : View
Products Affected
haxx
- libcurl
CWE