QEMU up to 4.5.x SLiRP Networking tftp_input out-of-bounds
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability was found in QEMU up to 4.5.x and classified as problematic. Affected by this issue is the function tftp_input of the component SLiRP Networking. The manipulation results in out-of-bounds.
This vulnerability is known as CVE-2021-3595. It is possible to launch the attack remotely. No exploit is available.
It is suggested to upgrade the affected component.
Details
A vulnerability was found in QEMU up to 4.5.x (Virtualization Software). It has been classified as problematic. Affected is the function tftp_input of the component SLiRP Networking. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality.
The weakness was published 06/16/2021. The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2021-3595. Technical details are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 4.6.0 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (209571). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Name
Version
License
Website
- Product: https://www.qemu.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: QEMU 4.6.0
Timeline
06/10/2021 🔍06/16/2021 🔍
06/16/2021 🔍
10/25/2024 🔍
Sources
Product: qemu.orgAdvisory: bugzilla.redhat.com
Status: Confirmed
CVE: CVE-2021-3595 (🔍)
GCVE (CVE): GCVE-0-2021-3595
GCVE (VulDB): GCVE-100-177090
Entry
Created: 06/16/2021 08:20Updated: 10/25/2024 20:36
Changes: 06/16/2021 08:20 (39), 06/18/2021 17:20 (5), 10/25/2024 20:36 (16)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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