A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be triggered when a libsoup client receives a 401 (Unauthorized) HTTP response containing a specifically crafted domain parameter within the WWW-Authenticate header. Processing this malformed header can lead to a crash of the client application using libsoup. An attacker could exploit this by setting up a malicious HTTP server. If a users application using the vulnerable libsoup library connects to this malicious server, it could result in a denial-of-service. Successful exploitation requires tricking a users client application into connecting to the attackers malicious server.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libsoup2.4 | Ubuntu | esm-infra/bionic | * |
| Libsoup2.4 | Ubuntu | esm-infra/focal | * |
| Libsoup2.4 | Ubuntu | esm-infra/xenial | * |
| Libsoup2.4 | Ubuntu | focal | * |
| Libsoup2.4 | Ubuntu | jammy | * |
| Libsoup2.4 | Ubuntu | noble | * |
| Libsoup2.4 | Ubuntu | oracular | * |
| Libsoup2.4 | Ubuntu | plucky | * |
| Libsoup3 | Ubuntu | esm-apps/jammy | * |
| Libsoup3 | Ubuntu | jammy | * |
| Libsoup3 | Ubuntu | noble | * |
| Libsoup3 | Ubuntu | oracular | * |
| Libsoup3 | Ubuntu | plucky | * |