CVE-2021-44143
- Source
- https://cve.org/CVERecord?id=CVE-2021-44143
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44143.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-44143
- Downstream
- Related
- Published
- 2021-11-22T20:15:18.223Z
- Modified
- 2026-03-10T23:50:32.909054Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- 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://sourceforge.net/p/isync/isync/ref/master/tags/
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=999804
- https://security.gentoo.org/glsa/202208-15
- https://sourceforge.net/p/isync/isync/commit_browser
- http://www.openwall.com/lists/oss-security/2021/12/03/2
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44143.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "1.4.0"
},
{
"last_affected": "1.4.3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "10.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "34"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "35"
}
]
}
]