Upstream information

CVE-2023-25564 at MITRE


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
  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 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP4
  • gssntlmssp >= 1.2.0-bp154.2.3.1
  • gssntlmssp-devel >= 1.2.0-bp154.2.3.1
openSUSE Leap 15.4
  • gssntlmssp >= 1.2.0-bp154.2.3.1
  • gssntlmssp-devel >= 1.2.0-bp154.2.3.1
openSUSE Tumbleweed
  • gssntlmssp >= 1.2.0-1.1
  • gssntlmssp-devel >= 1.2.0-1.1
openSUSE Tumbleweed GA gssntlmssp-1.2.0-1.1

SUSE Timeline for this CVE

CVE page created: Tue Feb 14 21:00:59 2023
CVE page last modified: Sun Feb 19 01:06:41 2023