Ampere Altra/AltraMax up to 2022-07-15 Hertzbleed information exposure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Ampere Altra and AltraMax up to 2022-07-15. This issue affects some unknown processing. This manipulation causes information exposure. This vulnerability is registered as CVE-2022-35888. It is feasible to perform the attack on the physical device. No exploit is available.

Detailsinfo

A vulnerability has been found in Ampere Altra and AltraMax up to 2022-07-15 and classified as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a information exposure vulnerability. The CWE definition for the vulnerability is CWE-203. The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. As an impact it is known to affect confidentiality. The summary by CVE is:

Ampere Altra and Ampere Altra Max devices through 2022-07-15 allow attacks via Hertzbleed, which is a power side-channel attack that extracts secret information from the CPU by correlating the power consumption with data being processed on the system.

The weakness was published 09/29/2022. The advisory is shared at amperecomputing.com. This vulnerability is known as CVE-2022-35888 since 07/15/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-38761). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 2.1
VulDB Temp Score: 2.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Information exposure
CWE: CWE-203 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/15/2022 🔍
09/29/2022 +76 days 🔍
09/29/2022 +0 days 🔍
05/20/2025 +964 days 🔍

Sourcesinfo

Advisory: amperecomputing.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-35888 (🔍)
GCVE (CVE): GCVE-0-2022-35888
GCVE (VulDB): GCVE-100-209785
EUVD: 🔍

Entryinfo

Created: 09/29/2022 10:04
Updated: 05/20/2025 23:47
Changes: 09/29/2022 10:04 (39), 10/25/2022 11:14 (11), 05/20/2025 23:47 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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