#VU54076 Untrusted Pointer Dereference in Isync: mailbox synchronizer - CVE-2021-3578

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Main Vulnerability Database Vulnerabilities #VU54076

#VU54076 Untrusted Pointer Dereference in Isync: mailbox synchronizer - CVE-2021-3578

Published: June 13, 2021


Vulnerability identifier: #VU54076
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3578
CWE-ID: CWE-822
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Isync: mailbox synchronizer
Software vendor:
ossi

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error in mbsync when processing unexpected APPENDUID response from a malicious server. A remote attacker who controls a mail server can send a specially crafted response to the client, trigger memory corruption and execute arbitrary code on the system.


Remediation

Install updates from vendor's website.

External links