CVE-2021-3578
HIGHmbsync <1.3.6 and 1.4.2 - Code Execution via APPENDUID Heap Overflow
Title source: manualDescription
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.
References (9)
Core 9
Core References
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/06/07/1
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
Not Applicable x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1961710
Not Applicable x_refsource_misc
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1967397
Mailing List, Patch, Third Party Advisory x_refsource_misc
https://www.openwall.com/lists/oss-security/2021/06/07/1
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202208-15
Scores
CVSS v3
7.8
EPSS
0.0098
EPSS Percentile
57.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-704
Status
published
Products (6)
debian/debian_linux
9.0
fedoraproject/fedora
33
fedoraproject/fedora
34
isync_project/isync
1.4.0
isync_project/isync
1.4.1
isync_project/isync
< 1.3.6
Published
Feb 16, 2022
Tracked Since
Feb 18, 2026