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Mend.io Vulnerability Database

CVE-2021-3578

Date: February 16, 2022

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.

Language: C

Severity Score

7.8

Related Resources (17)

Url: https://www.openwall.com/lists/oss-security/2021/06/07/1

Url: https://security.gentoo.org/glsa/202208-15

Url: https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1967397

Url: https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/

Url: http://www.openwall.com/lists/oss-security/2021/06/07/1

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U75UFEWRAZYKVL5NHMPBUOLWN3WXTOEI/

Url: https://sourceforge.net/p/isync/mailman/message/37297759/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RPIDLIJKNRJHUVBCL7QGAPAAVPIHQGXK/

Url: https://security-tracker.debian.org/tracker/CVE-2021-3578

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3578

Url: https://security.alpinelinux.org/vuln/CVE-2021-3578

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-3578

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1961710

Url: https://www.mend.io/vulnerability-database/CVE-2021-3578

Severity Score

7.8

Weakness Type (CWE)

Incorrect Type Conversion or Cast

CWE-704

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-3578

Date: February 16, 2022

Language: C

Severity Score

Related Resources (17)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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