Vulnerability Details : 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.
Vulnerability category: Execute code
Products affected by CVE-2021-3578
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:isync_project:isync:*:*:*:*:*:*:*:*
- cpe:2.3:a:isync_project:isync:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:isync_project:isync:1.4.0:*:*:*:*:*:*:*
Threat overview for CVE-2021-3578
Top countries where our scanners detected CVE-2021-3578
Top open port discovered on systems with this issue
53
IPs affected by CVE-2021-3578 247,752
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-3578!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-3578
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3578
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-3578
-
The product does not correctly convert an object, resource, or structure from one type to a different type.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2021-3578
-
https://bugzilla.redhat.com/show_bug.cgi?id=1961710
1961710 – (CVE-2021-3560) CVE-2021-3560 polkit: local privilege escalation using polkit_system_bus_name_get_creds_sync()Not Applicable
-
https://bugzilla.redhat.com/show_bug.cgi?id=1967397
1967397 – (CVE-2021-3578) CVE-2021-3578 isync: unchecked pointer cast may lead to remote code executionIssue Tracking;Patch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/06/07/1
oss-security - CVE-2021-3578: possible remote code execution in isync/mbsyncMailing List;Patch;Third Party Advisory
-
https://security.gentoo.org/glsa/202208-15
isync: Multiple Vulnerabilities (GLSA 202208-15) — Gentoo securityThird Party Advisory
-
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
Privilege escalation with polkit: How to get root on Linux with a seven-year-old bug | The GitHub BlogNot Applicable
-
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html
[SECURITY] [DLA 3066-1] isync security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/
[SECURITY] Fedora 33 Update: isync-1.4.2-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2021/06/07/1
oss-security - CVE-2021-3578: possible remote code execution in isync/mbsyncMailing List;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/
[SECURITY] Fedora 34 Update: isync-1.4.2-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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