AMD Platform Security Processor up to 0.17 Build 11 Secure Encrypted Virtualization Elliptic-Curve cryptographic issues
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.02 |
A vulnerability classified as critical has been found in AMD Platform Security Processor up to 0.17 Build 11. Affected is an unknown code block of the component Secure Encrypted Virtualization. The manipulation with an unknown input leads to a cryptographic issues vulnerability (Elliptic-Curve). CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Secure Encrypted Virtualization (SEV) on Advanced Micro Devices (AMD) Platform Security Processor (PSP; aka AMD Secure Processor or AMD-SP) 0.17 build 11 and earlier has an insecure cryptographic implementation.
The weakness was published 06/25/2019 as confirmed advisory (Website). The advisory is available at amd.com. This vulnerability is traded as CVE-2019-9836 since 03/15/2019. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project. The advisory points out:
Through ongoing collaboration with industry researchers AMD became aware that, if using the user-selectable AMD secure encryption feature on a virtual machine running the Linux operating system, an encryption key could be compromised by manipulating the encryption technology’s behavior.
Upgrading eliminates this vulnerability. The upgrade is hosted for download at developer.amd.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:
AMD released firmware-based cryptography updates to our ecosystem partners and on the AMD website to remediate this risk.
Product
Vendor
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: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
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: 🔍
NVD Base Score: 🔍
Exploiting
Name: Elliptic-CurveClass: Cryptographic issues / Elliptic-Curve
CWE: CWE-310
ATT&CK: T1600
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 |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: developer.amd.com
Timeline
03/15/2019 🔍06/25/2019 🔍
06/25/2019 🔍
06/26/2019 🔍
10/08/2023 🔍
Sources
Advisory: 153436Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-9836 (🔍)
Entry
Created: 06/26/2019 09:06Updated: 10/08/2023 08:39
Changes: 06/26/2019 09:06 (62), 06/27/2020 20:11 (1), 10/08/2023 08:39 (4)
Complete: 🔍
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