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{"bugzilla": {"description": "kernel: memory leak in drivers/media/cec/core/cec-api.c", "id": "2239712", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2239712"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "details": ["An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.", "A flaw was found in cec_adap_g_log_addrs in drivers/media/cec/core/cec-api.c in the Linux Kernel. This issue may allow a local attacker to leak one byte of kernel memory on specific hardware to unprivileged users, directly assigning log_addrs with a hole in the structure, causing a kernel information leak problem."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is to skip loading the affected module HDMI Consumer Electronics Control framework driver \"cec\" onto the system until we have a fix available. This can be done by a blacklist mechanism, which will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically?\nhttps://access.redhat.com/solutions/41278 \n~~~"}, "name": "CVE-2020-36766", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:2", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Cryostat 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-09-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-36766\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-36766\nhttps://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570"], "threat_severity": "Low", "upstream_fix": "kernel 5.8.6"}