Upstream information
Description
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. This can lead to a large, up to 65KB, out-of-bounds read which could cause a denial-of-service if it reads from unmapped memory. Version 1.2.0 contains a patch for the out-of-bounds reads.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 5.9 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- openSUSE-SU-2023:0048-1, published Sat Feb 18 22:43:52 2023
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Liberty Linux 8 |
| Patchnames: RHSA-2023:3097 |
| SUSE Package Hub 15 SP4 |
| Patchnames: openSUSE-2023-48 |
| openSUSE Leap 15.4 |
| Patchnames: openSUSE-2023-48 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA gssntlmssp-1.2.0-1.1 |
SUSE Timeline for this CVE
CVE page created: Tue Feb 14 21:00:58 2023CVE page last modified: Mon Oct 30 18:18:59 2023