CVE-2021-27433

See a problem?
Please try reporting it to the source first.
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
2026-04-10T04:31:32.216832Z
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
0 Unknown introduced commit / All previous commits are affected
Last affected
35ab210fb219029a7c388898d641915f869c2a36
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.3.0"
        }
    ]
}

Affected versions

Other
beta-release
mbedos-2016q1-oob1
mbedos-2016q1-oob2
mbedos-2016q1-oob3
mbedos-release-15-11
mbedos-techcon-oob2
mbedos-16.*
mbedos-16.01-release
mbedos-16.03-release
v0.*
v0.0.10
v0.0.2
v0.0.3
v0.0.4
v0.0.5
v0.0.6
v0.0.7
v0.0.8
v0.0.9
v0.1.0
v0.2.0
v0.2.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.1.1
v1.2.0
v1.3.0

Database specific

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