{"id":"CVE-2023-4135","summary":"Out-of-bounds read information disclosure vulnerability","details":"A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.","modified":"2026-08-12T03:51:29.914968609Z","published":"2023-08-04T13:19:15.760Z","database_specific":{"cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4135.json","cna_assigner":"redhat"},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"WEB","url":"https://packages.fedoraproject.org/"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-4135"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4135.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4135"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230915-0012/"},{"type":"ADVISORY","url":"https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2229101"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/qemu/qemu","events":[{"introduced":"c1eb2ddf0f8075faddc5f7c3d39feae3e8e9d6b4"},{"fixed":"7e5a8bb22368b3555644cb2debd3df24592f3a21"},{"introduced":"2c27fdc7a626408ee2cf30d791aa0b63027c7404"},{"last_affected":"9ba37026fcf6b7f3f096c0cca3e1e7307802486b"}],"database_specific":{"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc0:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc1:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc2:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.1.0"},{"introduced":"8.1.0-rc0"},{"last_affected":"8.1.0-rc0"},{"introduced":"8.1.0-rc1"},{"last_affected":"8.1.0-rc1"},{"introduced":"8.1.0-rc2"},{"last_affected":"8.1.0-rc2"}]}}],"versions":["8.1.0-rc0","8.1.0-rc1","8.1.0-rc2","v8.1.0-rc4","v8.1.0-rc3","v8.1.0-rc2","v8.1.0-rc1","v8.1.0-rc0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4135.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.com/qemu-project/qemu","events":[{"introduced":"c1eb2ddf0f8075faddc5f7c3d39feae3e8e9d6b4"},{"fixed":"7e5a8bb22368b3555644cb2debd3df24592f3a21"},{"introduced":"2c27fdc7a626408ee2cf30d791aa0b63027c7404"},{"last_affected":"9ba37026fcf6b7f3f096c0cca3e1e7307802486b"}],"database_specific":{"extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.1.0"},{"introduced":"8.1.0-rc0"},{"last_affected":"8.1.0-rc0"},{"introduced":"8.1.0-rc1"},{"last_affected":"8.1.0-rc1"},{"introduced":"8.1.0-rc2"},{"last_affected":"8.1.0-rc2"}],"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc0:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc1:*:*:*:*:*:*","cpe:2.3:a:qemu:qemu:8.1.0:rc2:*:*:*:*:*:*"]}}],"versions":["8.1.0-rc0","8.1.0-rc1","8.1.0-rc2","v8.1.0-rc4","v8.1.0-rc3","v8.1.0-rc2","v8.1.0-rc1","v8.1.0-rc0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4135.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N"}]}