CVE-2023-4135 MEDIUM

CVE-2023-4135: Out-of-bounds read information disclosure vulnerability

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-125
Published August 4, 2023
Last update August 2, 2024

CVSS base score

6.0/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 4, 2023 CVE published
August 2, 2024 Record updated