CVE-2023-4135

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	qemu-kvm	—
Red Hat	Red Hat Enterprise Linux 6	—
Red Hat	Red Hat Enterprise Linux 7	—
Red Hat	Red Hat Enterprise Linux 7	—
Red Hat	Red Hat Enterprise Linux 8	—
Red Hat	Red Hat Enterprise Linux 8 Advanced Virtualization	—
Red Hat	Red Hat Enterprise Linux 9	—
Fedora	Fedora	—
Fedora	Extra Packages for Enterprise Linux	—

References

https://access.redhat.com/security/cve/CVE-2023-4135Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2229101Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230915-0012/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/CVE-2023-4135Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2229101Issue Tracking, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230915-0012/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521Broken Link, Third Party Advisory, VDB Entry

Timeline

Published: Aug 4, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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