Intel CPU Instruction Retbleed information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Intel CPU. This affects an unknown part of the component Instruction Handler. Such manipulation leads to information disclosure. This vulnerability is traded as CVE-2022-29901. An attack has to be approached locally. There is no exploit available. This vulnerability has a historic impact due to its background and reception.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Intel CPU (Chip Software) (affected version not known). Affected by this issue is some unknown functionality of the component Instruction Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

The weakness was shared 07/12/2022 as intel-sa-00702. The advisory is shared for download at intel.com. This vulnerability is handled as CVE-2022-29901 since 04/28/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/23/2026). The MITRE ATT&CK project declares the attack technique as T1592. This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 208564 (CentOS 7 : kernel (RHSA-2022:7337)), which helps to determine the existence of the flaw in a target environment.

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 databases at Tenable (208564) and EUVD (EUVD-2022-34211). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 2.5
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.6
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208564
Nessus Name: CentOS 7 : kernel (RHSA-2022:7337)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/28/2022 🔍
07/12/2022 +75 days 🔍
07/12/2022 +0 days 🔍
05/23/2026 +1411 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-00702
Status: Confirmed

CVE: CVE-2022-29901 (🔍)
GCVE (CVE): GCVE-0-2022-29901
GCVE (VulDB): GCVE-100-203744
EUVD: 🔍

Entryinfo

Created: 07/12/2022 22:44
Updated: 05/23/2026 19:33
Changes: 07/12/2022 22:44 (48), 07/14/2022 07:48 (3), 10/15/2024 18:53 (16), 05/23/2026 19:33 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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