Cyber Resilience

CVE-2021-3578

High

Published: 16 February 2022

Published
16 February 2022
Modified
21 November 2024
KEV Added
—
Patch
07 June 2021
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0086 75.4th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3578 is a high-severity Incorrect Type Conversion or Cast (CWE-704) vulnerability in Isync Project Isync. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 24.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in mbsync before v1.3.6 and v1.4.2, where an unchecked pointer cast allows a malicious or compromised server to write an arbitrary integer value past the end of a heap-allocated structure by issuing an unexpected APPENDUID response.…

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This could be plausibly exploited for remote code execution on the client.

CWE(s)
CWE-704

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

isync project
isync
1.4.0, 1.4.1 · ≤ 1.3.6
fedoraproject
fedora
33, 34
debian
debian linux
9.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References