Samba: out-of-bounds read in winbind auth_crap
CVE-2022-2127
5.9MEDIUM
Key Information:
- Vendor
- Red Hat
- Status
- Vendor
- CVE Published:
- 20 July 2023
Summary
An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.
Affected Version(s)
Red Hat Enterprise Linux 8 0:4.18.6-1.el8
Red Hat Enterprise Linux 8 0:4.18.6-1.el8
Red Hat Enterprise Linux 8.6 Extended Update Support 0:4.15.5-15.el8_6
References
CVSS V3.1
Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved