جزئیات آسیب‌پذیری

A NULL pointer dereference flaw was found in GStreamer's RTSP support library. The vulnerability occurs while parsing an Authorization or WWW-Authenticate header that uses Digest authentication. Specially crafted whitespace placement around a parameter's terminator can cause an internal length calculation to underflow, leading to a crash of the process parsing the header. On an RTSP server this can be triggered by a remote, unauthenticated attacker sending a single malformed request when the server has authentication enabled; the same flaw can also be triggered against an RTSP client by a malicious or compromised RTSP server. Successful exploitation results in a denial of service (application crash) and has no confirmed impact on confidentiality or integrity.

• https://access.redhat.com/errata/RHSA-2026:66460 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:67145 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:69100 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/security/cve/CVE-2026-85150 vdb-entryx_refsource_REDHAT
• https://bugzilla.redhat.com/show_bug.cgi?id=2527936 issue-trackingx_refsource_REDHAT
• https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/120
• https://gitlab.freedesktop.org/gstreamer/gstreamer/-/blob/main/subprojects/gst-plugins-base/gst-libs/gst/rtsp/gstrtspmessage.c#L1408