CVE-2023-38546

Updated: 2024-01-26 19:54:30.41701

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x LOW 3.7

Status

OS name Project name Version Score Severity Status Errata Last updated
AlmaLinux 9.2 ESU curl 7.76.1 3.7 LOW Ignored 2023-11-08 04:07:56
CentOS 6 ELS curl 7.19.7 3.7 LOW Released CLSA-2023:1697464688 2023-10-30 09:35:00
CentOS 7 ELS curl 7.29.0 3.7 LOW Released CLSA-2023:1697463947 2023-10-16 11:06:36
CentOS 8.4 ELS curl 7.61.1 3.7 LOW Released CLSA-2023:1697465164 2023-10-16 11:06:31
CentOS 8.5 ELS curl 7.61.1 3.7 LOW Released CLSA-2023:1697465582 2023-10-16 11:06:34
CloudLinux 6 ELS curl 7.19.7 3.7 LOW Released CLSA-2023:1697464565 2023-10-30 09:34:59
Oracle Linux 6 ELS curl 7.19.7 3.7 LOW Released CLSA-2023:1697464394 2023-10-16 11:06:33
Ubuntu 16.04 ELS curl 7.47.0 3.7 LOW Released CLSA-2023:1697463486 2023-10-16 11:06:37
Ubuntu 18.04 ELS curl 7.58.0-2 3.7 LOW Released CLSA-2023:1697463318 2023-10-16 11:06:38