CVE-2021-44143
Critical
Description
A flaw was found in mbsync in isync 1.4.0 through 1.4.3. Due to an unchecked condition, a malicious or compromised IMAP server could use a crafted mail message that lacks headers (i.e., one that starts with an empty line) to provoke a heap overflow, which could conceivably be exploited for remote code execution.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Isync
PublishedNov 22, 2021
First seenNov 22, 2021
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isync_project isync | 1.4.0 ≤ v ≤ 1.4.3 | — |
| debian debian_linux | 9.0, 10.0, 11.0 | — |
| fedoraproject fedora | 34, 35 | — |
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