SB2022120924 - SUSE update for samba
Published: December 9, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Security restrictions bypass (CVE-ID: CVE-2022-2031)
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to the way the KDC kpasswd service handles password change requests. A remote user can escalate privileges on the system.
2) Memory leak (CVE-ID: CVE-2022-32742)
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.
3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-32744)
The vulnerability allows a remote user to force password change requests.
The vulnerability exists due to tickets received by the kpasswd service were decrypted without specifying that only that service's own keys should be tried. A remote user can force the server to accept tickets encrypted with any key and initiate password change requests for any Samba AD user.
4) Infinite loop (CVE-ID: CVE-2022-32745)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when processing LDAP requests. A remote user can send a specially crafted LDAP request to the server, consume all available system resources and cause denial of service conditions.
5) Use-after-free (CVE-ID: CVE-2022-32746)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error when handling LDAP requests. A remote user with ability to edit privileged properties, such as userAccountControl, can send a specially crafted LDAP request to the server, trigger a use-after-free error and perform a denial of service (DoS) attack.
6) Heap-based buffer overflow (CVE-ID: CVE-2022-3437)
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. A remote user can send specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.
7) Integer overflow (CVE-ID: CVE-2022-42898)
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.
Remediation
Install update from vendor's website.