CVE-2021-3578

A flaw was found in mbsync before v1.3.6 and v1.4.2, where an unchecked pointer cast allows a malicious or compromised server to write an arbitrary integer value past the end of a heap-allocated structure by issuing an unexpected APPENDUID response. This could be plausibly exploited for remote code execution on the client.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 84%
VendorProductVersion
isync_projectisync
𝑥
< 1.3.6
isync_projectisync
1.4.0
isync_projectisync
1.4.1
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
isync
bullseye
1.3.0-2.2+deb11u1
fixed
sid
1.4.4-5
fixed
trixie
1.4.4-5
fixed
bookworm
1.4.4-5
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
isync
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2021/06/07/1
https://bugzilla.redhat.com/show_bug.cgi?id=1961710
https://bugzilla.redhat.com/show_bug.cgi?id=1967397
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
https://security.gentoo.org/glsa/202208-15
https://www.openwall.com/lists/oss-security/2021/06/07/1
http://www.openwall.com/lists/oss-security/2021/06/07/1
https://bugzilla.redhat.com/show_bug.cgi?id=1961710
https://bugzilla.redhat.com/show_bug.cgi?id=1967397
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
https://security.gentoo.org/glsa/202208-15
https://www.openwall.com/lists/oss-security/2021/06/07/1