CVE-2021-44143

EUVD-2021-30996
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 91%
Affected Products (NVD)
VendorProductVersion
isync_projectisync
1.4.0 ≤
𝑥
≤ 1.4.3
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
isync
bookworm
1.4.4-5
fixed
bullseye
1.3.0-2.2+deb11u1
not-affected
buster
not-affected
sid
1.4.4-5
fixed
stretch
not-affected
trixie
1.4.4-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
isync
bionic
not-affected
focal
not-affected
hirsute
not-affected
impish
not-affected
jammy
needed
kinetic
ignored
lunar
ignored
mantic
ignored
noble
needed
trusty
ignored
xenial
needs-triage
Common Weakness Enumeration
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/