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Vulnerability Details : CVE-2021-43790

Lucet is a native WebAssembly compiler and runtime. There is a bug in the main branch of `lucet-runtime` affecting all versions published to crates.io that allows a use-after-free in an Instance object that could result in memory corruption, data race, or other related issues. This bug was introduced early in the development of Lucet and is present in all releases. As a result of this bug, and dependent on the memory backing for the Instance objects, it is possible to trigger a use-after-free when the Instance is dropped. Users should upgrade to the main branch of the Lucet repository. Lucet no longer provides versioned releases on crates.io. There is no way to remediate this vulnerability without upgrading.
Publish Date : 2021-11-30 Last Update Date : 2021-12-01
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Memory corruption
CWE ID 416

- Products Affected By CVE-2021-43790

# Product Type Vendor Product Version Update Edition Language
1 Application Bytecodealliance Lucet * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Bytecodealliance Lucet 1

- References For CVE-2021-43790

https://github.com/bytecodealliance/lucet/security/advisories/GHSA-hf79-8hjp-rrvq CONFIRM
https://crates.io/crates/lucet-runtime
https://github.com/bytecodealliance/lucet/commit/7c7757c772fb709c61b1442bcc1e1fbee97bf4a8

- Metasploit Modules Related To CVE-2021-43790

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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