Multiple buffer overflows in src/ezstream.c in Ezstream before 0.3.0 allow remote attackers to execute arbitrary code via a crafted XML configuration file processed by the (1) urlParse function, which causes a stack-based overflow and the (2) ReplaceString function, which causes a heap-based overflow. NOTE: some of these details are obtained from third party information.

Icecast before 2.4.2, when a stream_auth handler is defined for URL authentication, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a request without login credentials, as demonstrated by a request to "admin/killsource?mount=/test.ogg."

icecast before 2.3.3 allows remote attackers to inject control characters such as newlines into the error loc (error.log) via a crafted URL.

A buffer overflow was discovered in the URL-authentication backend of the Icecast before 2.4.4. If the backend is enabled, then any malicious HTTP client can send a request for that specific resource including a crafted header, leading to denial of service and potentially remote code execution.