Vulnerability identifier: #VU65824

Vulnerability risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32742

CWE-ID: CWE-401

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Samba
Server applications / Directory software, identity management

Vendor: Samba

Description
The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due memory leak when handling SMB1 requests. A remote user with ability to write data to a file share can force the application to leak memory and gain access to potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Samba: 4.16.0 - 4.16.3, 4.15.0 - 4.15.8, 4.14.0 - 4.14.13, 4.13.0 - 4.13.17, 4.12.0 - 4.12.15, 4.11.0 - 4.11.17, 4.10.0 - 4.10.18, 4.9.0 - 4.9.18, 1.9.16 - 1.9.18, 4.8.0 - 4.8.12, 4.7.0 - 4.7.12, 4.6.0 - 4.6.16, 4.5.0 - 4.5.16, 4.4.0 - 4.4.16, 4.3.0 - 4.3.13, 4.2.0 - 4.2.14, 4.1.0 - 4.1.23, 4.0.0 - 4.0.26, 3.6.0 - 3.6.25, 3.5 - 3.5.22, 3.1 - 3.1.0, 3.4 - 3.4.17, 2.2 - 2.2a, 3.3 - 3.3.16, 3.0 - 3.0.37, 3.2 - 3.2.15, 2.18.3, 2.0 - 2.0.10

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External links
http://www.samba.org/samba/security/CVE-2022-32742.html
http://www.zerodayinitiative.com/advisories/ZDI-23-713/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.