Remote code execution in Samba



Published: 2022-11-15
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-42898
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Samba
Server applications / Directory software, identity management

Vendor Samba

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU69337

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-42898

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to an integer overflow within the S4U2Proxy handler on 32-bit systems. A remote user can send specially crafted request to the KDC server, trigger an integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Samba: 4.1.0 - 4.17.2, 4.16.0 - 4.16.6, 4.15.0 - 4.15.11, 4.14.0 - 4.14.14, 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, 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, 4.0.0 - 4.0.26


CPE2.3 External links

http://www.samba.org/samba/security/CVE-2022-42898.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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