CVE-2021-44143
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-44143
Vendor advisory: arch — https://security.archlinux.org/ASA-202112-5
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.4.4-1 | |
| debian | bookworm | fixed | 1.4.4-1 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 1.4.4-1 |
| debian | sid | fixed | 1.4.4-1 |
| debian | trixie | fixed | 1.4.4-1 |
References
Verify integrity in audit chain (admin only). AS-IS.