by Kastro
Paper/Archive/CVE-2021-27433

CVE-2021-27433

ARM mbed-ualloc memory library — ARM mbed-ualloc memory library Integer Overflow or Wraparound

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 78.3.783 × 2015.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
mbed-ualloc memory library1.3.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
icscert (CNA)7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refcisa.gov/uscert/ics/advisories/icsa-21-119-04refgithub.com/ARMmbed/mbed-os/pull/14408