Envoy up to 1.31.4/1.32.2 control flow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Envoy up to 1.31.4/1.32.2. Impacted is an unknown function. The manipulation leads to control flow. This vulnerability is uniquely identified as CVE-2024-53271. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Envoy up to 1.31.4/1.32.2 and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a control flow vulnerability. Using CWE to declare the problem leads to CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. Impacted is confidentiality, and availability. The summary by CVE is:

Envoy is a cloud-native high-performance edge/middle/service proxy. In affected versions envoy does not properly handle http 1.1 non-101 1xx responses. This can lead to downstream failures in networked devices. This issue has been addressed in versions 1.31.5 and 1.32.3. Users are advised to upgrade. There are no known workarounds for this issue.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-53271 since 11/19/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.31.5 or 1.32.3 eliminates this vulnerability. Applying the patch da56f6da63079baecef9183436ee5f4141a59af8 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (GitHub_M): 🔍

CVSSv2info

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

Exploitinginfo

Class: Control flow
CWE: CWE-670
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Envoy 1.31.5/1.32.3
Patch: da56f6da63079baecef9183436ee5f4141a59af8

Timelineinfo

11/19/2024 🔍
12/18/2024 +29 days 🔍
12/18/2024 +0 days 🔍
09/04/2025 +260 days 🔍

Sourcesinfo

Advisory: GHSA-rmm5-h2wv-mg4f
Status: Confirmed

CVE: CVE-2024-53271 (🔍)
GCVE (CVE): GCVE-0-2024-53271
GCVE (VulDB): GCVE-100-288887

Entryinfo

Created: 12/18/2024 23:17
Updated: 09/04/2025 16:51
Changes: 12/18/2024 23:17 (64), 02/17/2025 03:11 (3), 09/04/2025 16:51 (1)
Complete: 🔍
Cache ID: 216::103

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