CVE-2023-25563

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:*:*:*:*:*:*:*:*

History

21 Nov 2024, 07:49

Type Values Removed Values Added
References () https://github.com/gssapi/gss-ntlmssp/commit/97c62c6167299028d80765080e74d91dfc99efbd - Patch, Third Party Advisory () https://github.com/gssapi/gss-ntlmssp/commit/97c62c6167299028d80765080e74d91dfc99efbd - Patch, Third Party Advisory
References () https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 - Third Party Advisory () https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 - Third Party Advisory
References () https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgf - Third Party Advisory () https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgf - Third Party Advisory
CVSS v2 : unknown
v3 : 7.5
v2 : unknown
v3 : 5.9

Information

Published : 2023-02-14 18:15

Updated : 2024-11-21 07:49


NVD link : CVE-2023-25563

Mitre link : CVE-2023-25563

CVE.ORG link : CVE-2023-25563


JSON object : View

Products Affected

gss-ntlmssp_project

  • gss-ntlmssp
CWE
CWE-125

Out-of-bounds Read