{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/vendors/spice-project/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:spice_project:spice-server:*:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":7.5,"id":"CVE-2026-105959"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["spice-server"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Spice Project"],"content_html":"\u003cp\u003eA critical integer truncation vulnerability (CVE-2026-105959) exists in the spice-server, specifically within the GLZ encoder dictionary restore path. The flaw occurs when a size_t allocation size is incorrectly truncated to an int when calling the memory allocation callback. An authenticated attacker acting as a SPICE client can leverage this vulnerability during the live migration of a virtual machine. By submitting a crafted max_encoders value in the migration data, the attacker forces the application to allocate an insufficient amount of memory, resulting in a heap buffer overflow. If successful, this attack could lead to arbitrary code execution within the context of the SPICE server process or induce a denial of service by crashing the virtual machine environment.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eThe vulnerability affects instances using spice-server, common in virtualization environments that provide remote display access to virtual machines. Successful exploitation allows an authenticated client to compromise the underlying virtualization host or service process. This presents a high risk for cloud providers, data centers, and enterprise environments managing virtualized infrastructure, potentially leading to cross-VM data access or service disruption.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitor virtual machine migration logs for abnormal SPICE protocol traffic.\u003c/li\u003e\n\u003cli\u003ePatch the spice-server component to the latest available vendor release addressing CVE-2026-105959.\u003c/li\u003e\n\u003cli\u003eReview access controls for SPICE protocol endpoints to ensure only authorized clients can initiate or interact with VM migration sessions.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-16T12:26:15Z","date_published":"2026-10-16T12:26:15Z","id":"https://feed.craftedsignal.io/briefs/2026-10-spice-server-heap-overflow/","summary":"An authenticated attacker can trigger a heap-based buffer overflow in spice-server during VM live migration by exploiting an integer truncation vulnerability in the GLZ encoder dictionary restore path.","title":"Heap-Based Buffer Overflow in spice-server GLZ Encoder","url":"https://feed.craftedsignal.io/briefs/2026-10-spice-server-heap-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed - Spice Project","version":"https://jsonfeed.org/version/1.1"}