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{"bugzilla": {"description": "FreeRDP: FreeRDP: Denial of service in camera redirection due to divide-by-zero", "id": "2509981", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509981"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-369", "details": ["FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains a divide-by-zero vulnerability in the rdpecam camera redirection client. ecam_dev_process_start_streams_request() parses a server-controlled CAM_MEDIA_TYPE_DESCRIPTION from a StartStreamsRequest PDU but validates only Format and Flags, not FrameRateDenominator. When a malicious or compromised RDP server sends a StartStreamsRequest with FrameRateDenominator set to zero, ecam_encoder_context_init() (channels/rdpecam/client/encoding.c) computes FrameRateNumerator / FrameRateDenominator, causing an integer division by zero (SIGFPE) and termination of the FreeRDP client process. Camera redirection must be enabled on the client for the channel to be reachable. Fixed in FreeRDP 3.29.0.", "A flaw was found in FreeRDP, a remote desktop protocol client. A malicious or compromised RDP server can exploit this vulnerability by sending a specially crafted `StartStreamsRequest` with a zero value for `FrameRateDenominator`. If camera redirection is enabled on the client, this action triggers a divide-by-zero error, causing the FreeRDP client process to terminate and resulting in a denial of service for the user."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, disable camera redirection when connecting to untrusted RDP servers. This can be achieved by using the --disable-camera option with the xfreerdp client or by configuring FreeRDP to not enable camera redirection. Disabling this feature will prevent the use of camera redirection functionality."}, "name": "CVE-2026-67302", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "freerdp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-01T12:22:18Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-67302\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-67302\nhttps://github.com/FreeRDP/FreeRDP/commit/1cc783d4c78bd2f66d3a8582dfe70a663d141444\nhttps://github.com/FreeRDP/FreeRDP/commit/5370fb26fbf034ecd11d3026b6ad639b5fff493f\nhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v89x-pc32-hqr7\nhttps://www.vulncheck.com/advisories/freerdp-rdpecam-startstreamsrequest-divide-by-zero-denial-of-service"], "statement": "This vulnerability in FreeRDP affects clients with camera redirection enabled. A malicious RDP server could send a crafted `StartStreamsRequest` PDU, leading to a divide-by-zero error and client process termination, resulting in a denial of service. Exploitation requires user interaction to connect to a compromised server with the vulnerable feature active.", "threat_severity": "Moderate"}

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