CVE-2021-4327

Public Exploit
SerenityOS TypedArray.cpp initialize_typed_array_from_array_buffer integer overflow

Description

A vulnerability was found in SerenityOS. It has been rated as critical. Affected by this issue is the function initialize_typed_array_from_array_buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. The manipulation leads to integer overflow. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is identified as f6c6047e49f1517778f5565681fb64750b14bf60. It is recommended to apply a patch to fix this issue. VDB-222074 is the identifier assigned to this vulnerability.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory devcraft.io Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: n/a SerenityOS
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.222074 permissions required vdb entry third party advisory technical description
https://vuldb.com/?ctiid.222074 permissions required signature third party advisory
https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.html third party advisory exploit
https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60 patch

Frequently Asked Questions

What is the severity of CVE-2021-4327?
CVE-2021-4327 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4327?
To fix CVE-2021-4327, 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-2021-4327 being actively exploited in the wild?
It is possible that CVE-2021-4327 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4327?
CVE-2021-4327 affects n/a SerenityOS.
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