CVE-2022-27779
Published: August 31, 2023Last modified: August 31, 2023
Description
libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack Vector | NETWORK |
Attack complexity | LOW |
Privileges required | NONE |
User interaction | NONE |
Scope | UNCHANGED |
Confidentiality | LOW |
Integrity impact | NONE |
Availability impact | NONE |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Status
Product | Release | Package | Status |
---|---|---|---|
Alpaquita Linux | 23 LTS | curl | Not affected (8.2.1-r0) |
Stream | curl | Not affected (8.2.1-r0) |