SB2021061303 - Arch Linux update for isync
Published: June 13, 2021
Security Bulletin ID
SB2021061303
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Untrusted Pointer Dereference (CVE-ID: CVE-2021-3578)
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 update from vendor's website.