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{"bugzilla": {"description": "nasm: Null pointer dereference via asm/preproc.c", "id": "2035084", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2035084"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-476", "details": ["A Null Pointer Dereference vulnerability existfs in nasm 2.16rc0 via asm/preproc.c.", "A null-pointer dereference flaw was found in nasm's preproc.c. An attacker with local network access could pass specially crafted unknown input causing an application to halt or crash, leading to a denial of service."], "name": "CVE-2021-45256", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "nasm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "nasm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "nasm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "nasm", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-12-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-45256\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-45256"], "statement": "This issue does not affect the versions of NASM as shipped with Red Hat Enterprise Linux 6, 7, 8 and 9 as they do not include the vulnerable function in their source code.", "threat_severity": "Low"}

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