CVE-2021-27433

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Source
https://cve.org/CVERecord?id=CVE-2021-27433
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27433.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-27433
Published
2022-05-03T21:15:08.570Z
Modified
2026-07-09T00:07:12.985748Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

ARM mbed-ualloc memory library version 1.3.0 is vulnerable to integer wrap-around in function mbed_krbs, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

References

Affected packages

Git / github.com/armmbed/ualloc

Affected ranges

Type
GIT
Repo
https://github.com/armmbed/ualloc
Events
Introduced
35ab210fb219029a7c388898d641915f869c2a36
Last affected
35ab210fb219029a7c388898d641915f869c2a36
Database specific 
{
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:arm:mbed_ualloc:1.3.0:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "1.3.0"
        },
        {
            "last_affected": "1.3.0"
        }
    ]
}

Affected versions

1.*
1.3.0
mbedos-16.*
mbedos-16.01-release
mbedos-16.03-release
Other
mbedos-2016q1-oob3
v1.*
v1.3.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27433.json"