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7.5
CVSSv2

CVE-2021-44143

Published: 22/11/2021 Updated: 07/11/2023
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 668
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
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Vulnerability Summary

A flaw was found in mbsync in isync 1.4.0 up to and including 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.

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debian debian linux 9.0

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debian debian linux 11.0

fedoraproject fedora 34

fedoraproject fedora 35

Vendor Advisories

Arch Linux Issues:
A security issue was found in mbsync in isync 140 through 143 Due to an unchecked condition, a malicious or compromised IMAP server could use a crafted mail message that lacks headers (ie, one that starts with an empty line) to provoke a heap overflow, which could conceivably be exploited for remote code execution ...

References

CWE-787https://sourceforge.net/p/isync/isync/commit_browserhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999804https://sourceforge.net/p/isync/isync/ref/master/tags/http://www.openwall.com/lists/oss-security/2021/12/03/2https://security.gentoo.org/glsa/202208-15https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CYZ2GNB4ZO2T27D2XNUWMCS3THZYSJQU/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCBSY7OZ57XNC6ZYXF6WU5KBSWITZVDX/https://nvd.nist.govhttps://security.archlinux.org/CVE-2021-44143
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2022-38028CVE-2024-32406CVE-2024-25624IMAPCVE-2024-2310CVE-2024-0874CVE-2024-20359XXEremote code execution
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