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.
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Configurations

Configuration 1 (hide)

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

Information

Published : 2023-02-14 10:15

Updated : 2023-02-22 10:37


NVD link : CVE-2023-25563

Mitre link : CVE-2023-25563


JSON object : View

CWE
CWE-125

Out-of-bounds Read

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Products Affected

gss-ntlmssp_project

  • gss-ntlmssp