CVE-2021-43790
Lucet Runtime Use-After-Free Memory Corruption Vulnerability
Description
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.
INFO
Published Date :
Nov. 30, 2021, 12:15 a.m.
Last Modified :
Dec. 1, 2021, 2:48 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-43790.
| URL | Resource |
|---|---|
| https://crates.io/crates/lucet-runtime | Product Third Party Advisory |
| https://github.com/bytecodealliance/lucet/commit/7c7757c772fb709c61b1442bcc1e1fbee97bf4a8 | Patch Third Party Advisory |
| https://github.com/bytecodealliance/lucet/security/advisories/GHSA-hf79-8hjp-rrvq | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43790 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43790 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 01, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://crates.io/crates/lucet-runtime No Types Assigned https://crates.io/crates/lucet-runtime Product, Third Party Advisory Changed Reference Type https://github.com/bytecodealliance/lucet/commit/7c7757c772fb709c61b1442bcc1e1fbee97bf4a8 No Types Assigned https://github.com/bytecodealliance/lucet/commit/7c7757c772fb709c61b1442bcc1e1fbee97bf4a8 Patch, Third Party Advisory Changed Reference Type https://github.com/bytecodealliance/lucet/security/advisories/GHSA-hf79-8hjp-rrvq No Types Assigned https://github.com/bytecodealliance/lucet/security/advisories/GHSA-hf79-8hjp-rrvq Exploit, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:bytecodealliance:lucet:*:*:*:*:*:rust:*:* versions up to (including) 0.6.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43790 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-43790
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.47 }} 0.13%
score
0.76004
percentile