cve-2023-25563
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2024-08-02 11:25
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/gssapi/gss-ntlmssp/commit/97c62c6167299028d80765080e74d91dfc99efbdPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
security-advisories@github.comhttps://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/gssapi/gss-ntlmssp/commit/97c62c6167299028d80765080e74d91dfc99efbdPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgfThird Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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