CVEvulnerability
CVE-2021-3578
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-02-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-704
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.
Affected configurations
• isync project isync (< 1.3.6)
• isync project isync 1.4.0
• isync project isync 1.4.1
• fedoraproject fedora 33
• fedoraproject fedora 34
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-704 Incorrect Type Conversion or Cast weakness
References
- http://www.openwall.com/lists/oss-security/2021/06/07/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1961710 Not Applicable
- https://bugzilla.redhat.com/show_bug.cgi?id=1967397 Issue Tracking, Patch, Third Party Advisory
- https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ Not Applicable
- https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-15 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/06/07/1 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/06/07/1 Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1961710 Not Applicable
- https://bugzilla.redhat.com/show_bug.cgi?id=1967397 Issue Tracking, Patch, Third Party Advisory
- https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ Not Applicable
- https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202208-15 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/06/07/1 Mailing List, Patch, Third Party Advisory