futures-task Crate up to 0.3.5 on Rust futures_task::waker use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in futures-task Crate up to 0.3.5 on Rust. It has been declared as critical. This issue affects the function futures_task::waker. Such manipulation leads to use after free. This vulnerability is listed as CVE-2020-35906. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in futures-task Crate up to 0.3.5 on Rust (Rust Package). It has been rated as critical. Affected by this issue is the function futures_task::waker. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in the futures-task crate before 0.3.6 for Rust. futures_task::waker may cause a use-after-free in a non-static type situation.

The weakness was presented 12/31/2020 as RUSTSEC-2020-0060. The advisory is available at rustsec.org. This vulnerability is handled as CVE-2020-35906. Technical details are known, but there is no available exploit.

Upgrading to version 0.3.6 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: futures-task Crate 0.3.6

Timelineinfo

12/31/2020 🔍
12/31/2020 +0 days 🔍
10/30/2025 +1764 days 🔍

Sourcesinfo

Advisory: RUSTSEC-2020-0060
Status: Confirmed

CVE: CVE-2020-35906 (🔍)
GCVE (CVE): GCVE-0-2020-35906
GCVE (VulDB): GCVE-100-167138

Entryinfo

Created: 12/31/2020 15:11
Updated: 10/30/2025 19:31
Changes: 12/31/2020 15:11 (40), 10/30/2025 19:31 (36)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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