Critical severity · published Mar 1, 2023
CVE-2021-4327
A vulnerability was found in SerenityOS
9.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Serenityos · Serenityos
before 2021-01-27 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4327
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4327
Exploit
https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.html
Patch
https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60
Permissions Required
https://vuldb.com/?ctiid.222074
Permissions Required
https://vuldb.com/?id.222074
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