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Mend.io Vulnerability Database

CVE-2022-43634

Date: March 28, 2023

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.

Language: C

Severity Score

9.8

Related Resources (15)

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GEAFLA5L2SHOUFBAGUXIF2TZLGBXGJKT/

Url: https://github.com/Netatalk/Netatalk/pull/186

Url: https://github.com/Netatalk/Netatalk/commit/5fcb4ab02aced14484310165b3d754bb2f0820ca

Url: https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZYWSGVA6WXREMB6PV56HAHKU7R6KPOP/

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-43634

Url: https://security-tracker.debian.org/tracker/CVE-2022-43634

Url: https://www.debian.org/security/2023/dsa-5503

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GEAFLA5L2SHOUFBAGUXIF2TZLGBXGJKT/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SG6WZW5LXFVH3P7ZVZRGHUVJEMEFKQLI/

Url: https://www.zerodayinitiative.com/advisories/ZDI-23-094/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-43634

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SG6WZW5LXFVH3P7ZVZRGHUVJEMEFKQLI/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZYWSGVA6WXREMB6PV56HAHKU7R6KPOP/

Url: https://www.mend.io/vulnerability-database/CVE-2022-43634

Severity Score

9.8

Weakness Type (CWE)

Heap-based Buffer Overflow

CWE-122

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

Mend.io Vulnerability Database

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CVE-2022-43634

Date: March 28, 2023

Language: C

Severity Score

Related Resources (15)

Severity Score

Weakness Type (CWE)

CVSS v3.1

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