{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/dtls-plugin/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.5,"id":"CVE-2026-59692"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["DTLS plugin","gstreamer1-plugins-bad-free","gstreamer-plugins-bad-free"],"_cs_severities":["medium"],"_cs_tags":["denial-of-service","buffer-overflow","vulnerability","dtls","gstreamer","linux","high_confidence_source","watchlist_match"],"_cs_type":"advisory","_cs_vendors":["GStreamer","Red Hat"],"content_html":"\u003cp\u003eA significant denial-of-service vulnerability, CVE-2026-59692, has been identified in the DTLS plugin of GStreamer, a multimedia framework. This flaw allows a remote, unauthenticated attacker to crash any application or service utilizing the vulnerable plugin during a DTLS handshake. The vulnerability stems from a stack buffer overflow where the peer certificate's Subject Distinguished Name (DN) is copied into a fixed 2048-byte stack buffer without proper bounds checking. By presenting a specially crafted certificate containing an excessively long Subject DN, attackers can overwrite adjacent memory on the stack, leading to an immediate process crash and service interruption. This issue was publicly disclosed on July 9, 2026, and primarily impacts systems running GStreamer with the DTLS plugin, including various versions of Red Hat Enterprise Linux. This vulnerability is critical for defenders as it enables complete service disruption without requiring authentication or complex attack vectors.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eA remote unauthenticated attacker identifies a system or application using GStreamer with the vulnerable DTLS plugin.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious DTLS peer certificate where the Subject Distinguished Name (DN) field is intentionally oversized, exceeding 2048 bytes.\u003c/li\u003e\n\u003cli\u003eThe attacker initiates a DTLS handshake with the targeted vulnerable system or application.\u003c/li\u003e\n\u003cli\u003eDuring the handshake process, the GStreamer DTLS plugin receives the attacker's crafted certificate.\u003c/li\u003e\n\u003cli\u003eThe plugin attempts to print the oversized Subject DN from the certificate into a fixed-size 2048-byte stack buffer.\u003c/li\u003e\n\u003cli\u003eDue to the absence of bounds checking, the oversized Subject DN overflows the allocated stack buffer.\u003c/li\u003e\n\u003cli\u003eThe buffer overflow corrupts adjacent memory on the stack, leading to a critical program error.\u003c/li\u003e\n\u003cli\u003eThe vulnerable process crashes, resulting in a denial-of-service condition for the affected application or system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eThe successful exploitation of CVE-2026-59692 leads directly to a denial-of-service (DoS) condition. Any application or service relying on the vulnerable GStreamer DTLS plugin will crash upon receiving a specially crafted DTLS handshake from an attacker. This can significantly disrupt critical services, leading to operational downtime, financial losses, and reputational damage. While specific victim counts or targeted sectors are not detailed, any organization leveraging GStreamer for multimedia streaming with DTLS capabilities is potentially at risk, including those running Red Hat Enterprise Linux distributions. The unauthenticated and remote nature of the attack makes it a severe threat.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrioritize patching CVE-2026-59692 on all affected GStreamer DTLS plugin installations to prevent denial-of-service.\u003c/li\u003e\n\u003cli\u003eReview the referenced merge request at \u003ccode\u003ehttps://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/99\u003c/code\u003e for official patch details and apply immediately.\u003c/li\u003e\n\u003cli\u003eConsult Red Hat's security advisory at \u003ccode\u003ehttps://access.redhat.com/security/cve/CVE-2026-59692\u003c/code\u003e for specific updates related to Red Hat Enterprise Linux versions.\u003c/li\u003e\n\u003cli\u003eMonitor systems for unexpected crashes or restarts of services utilizing the GStreamer DTLS plugin, which could indicate exploitation attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-09T11:22:12Z","date_published":"2026-07-09T11:22:12Z","id":"https://feed.craftedsignal.io/briefs/2026-07-gstreamer-dtls-dos/","summary":"A stack buffer overflow vulnerability, CVE-2026-59692, exists in GStreamer's DTLS plugin, allowing a remote unauthenticated attacker to cause a denial of service by sending a crafted certificate with an oversized Subject Distinguished Name during a DTLS handshake, which the plugin prints into a fixed-size stack buffer without bounds checking, leading to a process crash.","title":"CVE-2026-59692: GStreamer DTLS Plugin Stack Buffer Overflow Leading to DoS","url":"https://feed.craftedsignal.io/briefs/2026-07-gstreamer-dtls-dos/"}],"language":"en","title":"CraftedSignal Threat Feed - DTLS Plugin","version":"https://jsonfeed.org/version/1.1"}