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Date: Fri, 3 Dec 2021 12:31:14 +0100
From: Oswald Buddenhagen <oswald.buddenhagen@....de>
To: isync-devel@...ts.sourceforge.net
Cc: oss-security@...ts.openwall.com
Subject: CVE-2021-44143: heap overflow in isync/mbsync
description:
A flaw was found in mbsync versions 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.
mitigation:
upgrade to the freshly released v1.4.4 available from
https://sourceforge.net/projects/isync/files/isync/ , or apply the
attached patch.
View attachment "CVE-2021-44143-buffer-overflow-on-invalid-1.4.patch" of type "text/x-diff" (2692 bytes)
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