CVE-2021-43138

Public Exploit

Description

In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.06% Top 25%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/caolan/async/blob/master/lib/internal/iterator.js third party advisory
https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js third party advisory
https://jsfiddle.net/oz5twjd9/ third party advisory exploit
https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d third party advisory patch
https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264 third party advisory release notes
https://github.com/caolan/async/pull/1828 third party advisory patch
https://github.com/caolan/async/compare/v2.6.3...v2.6.4 third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTEUUTNIEBHGKUKKLNUZSV7IEP6IP3Q3/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM6XJ73Q3NAM5KSGCOKJ2ZIA6GUWUJLK/ vendor advisory
https://security.netapp.com/advisory/ntap-20240621-0006/

Frequently Asked Questions

What is the severity of CVE-2021-43138?
CVE-2021-43138 has been scored as a high severity vulnerability.
How to fix CVE-2021-43138?
To fix CVE-2021-43138, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43138 being actively exploited in the wild?
It is possible that CVE-2021-43138 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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