CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.5 | $5k-$25k | 0.00 |
A vulnerability was found in QEMU 3.1.0 (Virtualization Software) and classified as critical. Affected by this issue is the function load_image
of the file device_tree.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:
In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk.
The bug was discovered 03/27/2019. The weakness was disclosed 05/31/2019 by Michael Hanselmann (Website). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2018-20815 since 03/26/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/25/2023).
The vulnerability was handled as a non-public zero-day exploit for at least 65 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176895 (Debian Security Update for qemu (DLA 1781-1)).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries 132018, 132071 and 138905 are pretty similar.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
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 |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Patch: da885fe1ee8b4589047484bd7fa05a4905b52b17
Timeline
02/18/2019 🔍03/26/2019 🔍
03/27/2019 🔍
05/31/2019 🔍
06/01/2019 🔍
09/25/2023 🔍
Sources
Product: qemu.orgAdvisory: RHSA-2019:1667
Researcher: Michael Hanselmann
Status: Confirmed
CVE: CVE-2018-20815 (🔍)
SecurityFocus: 107059 - QEMU CVE-2019-3812 Out-Of-Bounds Read Local Information Disclosure Vulnerability
OSVDB: - QEMU load_device_tree() function buffer overflow
See also: 🔍
Entry
Created: 06/01/2019 08:01Updated: 09/25/2023 13:18
Changes: 06/01/2019 08:01 (62), 06/17/2020 14:13 (4), 09/25/2023 13:18 (5)
Complete: 🔍
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