Vulnerability Details CVE-2021-44143
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.047
EPSS Ranking 88.9%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
- http://www.openwall.com/lists/oss-security/2021/12/03/2
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999804
- https://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://security.gentoo.org/glsa/202208-15
- https://sourceforge.net/p/isync/isync/commit_browser
- https://sourceforge.net/p/isync/isync/ref/master/tags/
- http://www.openwall.com/lists/oss-security/2021/12/03/2
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999804
- https://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://security.gentoo.org/glsa/202208-15
- https://sourceforge.net/p/isync/isync/commit_browser
- https://sourceforge.net/p/isync/isync/ref/master/tags/
Products affected by CVE-2021-44143
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cpe:2.3:a:isync_project:isync:1.4.0
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cpe:2.3:a:isync_project:isync:1.4.1
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cpe:2.3:a:isync_project:isync:1.4.2
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cpe:2.3:a:isync_project:isync:1.4.3
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:fedoraproject:fedora:35