CVE-2023-4135
Out-of-bounds read information disclosure vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Se encontró una falla de lectura de memoria fuera de los límites en el dispositivo nvme virtual en QEMU. El proceso QEMU no valida un desplazamiento proporcionado por el invitado antes de calcular un puntero de la memoria del host, que se utiliza para copiar datos al invitado. Se puede revelar memoria arbitraria en relación con un búfer asignado.
This vulnerability allows local attackers to disclose sensitive information on affected installations of QEMU. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability.
The specific flaw exists within the NVMe virtual device. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the hypervisor.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-08-03 CVE Reserved
- 2023-08-04 CVE Published
- 2023-08-05 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-4135 | Third Party Advisory | |
| https://security.netapp.com/advisory/ntap-20230915-0012 | Third Party Advisory |
|
| https://www.zerodayinitiative.com/advisories/ZDI-CAN-21521 | Broken Link |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2229101 | 2023-12-11 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | >= 8.0.0 < 8.1.0 Search vendor "Qemu" for product "Qemu" and version " >= 8.0.0 < 8.1.0" | - |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 8.1.0 Search vendor "Qemu" for product "Qemu" and version "8.1.0" | rc0 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 8.1.0 Search vendor "Qemu" for product "Qemu" and version "8.1.0" | rc1 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 8.1.0 Search vendor "Qemu" for product "Qemu" and version "8.1.0" | rc2 |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 38 Search vendor "Fedoraproject" for product "Fedora" and version "38" | - |
Affected
| ||||||