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CVE-2021-3578 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1961710 CVENot Applicable
https://bugzilla.redhat.com/show_bug.cgi?id=1967397 CVEIssue TrackingPatchThird Party Advisory
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ CVENot Applicable
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html CVEMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/ CVE

see all 18 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-704Incorrect Type Conversion or Cast[email protected]
CWE-704Incorrect Type Conversion or Cast[email protected]

Affected Products

ProductVersions
isync project isync
< 1.3.6
1.4.0
1.4.1

CPE

  • cpe:2.3:a:isync_project:isync:*:*:*:*:*:*:*:*
  • cpe:2.3:a:isync_project:isync:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:isync_project:isync:1.4.1:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
33
34

CPE

  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
9.0

CPE

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3578
NVD Published Date:
Feb 16, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-3578 Details - Not Deferred