Upstream information

CVE-2023-25564 at MITRE

Description

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 6.5
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1208279 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 8
  • gssntlmssp >= 1.2.0-1.el8_8
 Patchnames:
RHSA-2023:3097
SUSE Package Hub 15 SP4
  • gssntlmssp >= 1.2.0-bp154.2.3.1
  • gssntlmssp-devel >= 1.2.0-bp154.2.3.1
 Patchnames:
openSUSE-2023-48
openSUSE Leap 15.4
  • gssntlmssp >= 1.2.0-bp154.2.3.1
  • gssntlmssp-devel >= 1.2.0-bp154.2.3.1
 Patchnames:
openSUSE-2023-48
openSUSE Tumbleweed
  • gssntlmssp >= 1.2.0-1.1
  • gssntlmssp-devel >= 1.2.0-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-12701

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products past their end of life and not receiving proactive updates anymore.
SUSE Package Hub 15 SP4 gssntlmssp Released

SUSE Timeline for this CVE

CVE page created: Tue Feb 14 21:00:59 2023
CVE page last modified: Thu Dec 11 17:20:34 2025