Security Bulletin: Samba for IBM i is vulnerable to attacker obtaining sensitive information due to a memory leak with SMB1 requests (CVE-2022-32742)

Summary

Samba for IBM i is vulnerable to an attacker obtaining sensitive information due to a memory leak handling SMB1 requests as described in the vulnerability details section. IBM i has addressed the vulnerability in Samba with a fix as described in the remediation/fixes section.

Vulnerability Details

CVEID:CVE-2022-32742
**DESCRIPTION:**Samba could allow a remote authenticated attacker to obtain sensitive information, caused by a memory leak when handling SMB1 requests. By sending a specially-crafted request to write data to a file share, an attacker could exploit this vulnerability to obtain memory information, and use this information to launch further attacks against the affected system.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/232306 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i. IBM i releases 7.4 and 7.3 will be fixed.

The IBM i PTF numbers contain the fix for the vulnerability.

IBM i Release| 5770-SS1
PTF Number| PTF Download Link
—|—|—
7.4| SI80816| SI80816
7.3| SI80815| SI80815

<https://www.ibm.com/support/fixcentral&gt;

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None