VDB-98533 · CVE-2017-7262 · BID 97098

AMD Ryzen up to 2017-01-27 AGESA Microcode FMA3 Instruction input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in AMD Ryzen up to 2017-01-27. The affected element is an unknown function of the component AGESA Microcode. This manipulation as part of FMA3 Instruction causes input validation. This vulnerability appears as CVE-2017-7262. The attack requires local access. There is no available exploit. This vulnerability is historically significant due to its background and the way it was received.

Detailsinfo

A vulnerability classified as critical was found in AMD Ryzen up to 2017-01-27. Affected by this vulnerability is an unknown functionality of the component AGESA Microcode. The manipulation as part of a FMA3 Instruction leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The AMD Ryzen processor with AGESA microcode through 2017-01-27 allows local users to cause a denial of service (system hang) via an application that makes a long series of FMA3 instructions, as demonstrated by the Flops test suite.

The bug was discovered 03/24/2017. The weakness was presented 03/25/2017 (Website). The advisory is shared at forum.hwbot.org. This vulnerability is known as CVE-2017-7262 since 03/24/2017. An attack has to be approached locally. The successful exploitation needs a single authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/14/2020). Due to its background and reception, this vulnerability has a historic impact.

The problem might be mitigated by replacing the product with Intel as an alternative.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97098†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Alternative: Intel

Timelineinfo

03/24/2017 🔍
03/24/2017 +0 days 🔍
03/24/2017 +0 days 🔍
03/24/2017 +0 days 🔍
03/25/2017 +1 days 🔍
03/25/2017 +0 days 🔍
09/14/2020 +1269 days 🔍

Sourcesinfo

Advisory: forum.hwbot.org
Status: Not defined

CVE: CVE-2017-7262 (🔍)
GCVE (CVE): GCVE-0-2017-7262
GCVE (VulDB): GCVE-100-98533
SecurityFocus: 97098 - AMD Ryzen Processor CVE-2017-7262 Local Denial of Service Vulnerability
OSVDB: - CVE-2017-7262 - AMD - Ryzen - Denial of Service Issue

Entryinfo

Created: 03/25/2017 20:51
Updated: 09/14/2020 10:03
Changes: 03/25/2017 20:51 (61), 09/14/2020 10:03 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!