{"id":"CVE-2023-4135","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":"2026-02-24T11:44:36.426Z","published":"2023-08-04T14:15:12.173Z","references":[{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-4135"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2229101"},{"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"},{"type":"FIX","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"}]}],"versions":["v8.0.0","v8.1.0-rc0","v8.1.0-rc1","v8.1.0-rc2","v8.1.0-rc3","v8.1.0-rc4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4135.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}]}