Vulnerabilites related to gssapi - gss-ntlmssp
cve-2023-25567
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.
References
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-24pf-6prf-24chx_refsource_CONFIRM
https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4x_refsource_MISC
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0x_refsource_MISC
Impacted products
Vendor Product Version
gssapi gss-ntlmssp Version: < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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cve-2023-25566
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/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, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.
References
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74x_refsource_CONFIRM
https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4x_refsource_MISC
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0x_refsource_MISC
Impacted products
Vendor Product Version
gssapi gss-ntlmssp Version: < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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cve-2023-25565
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:11
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/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, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.
References
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfgx_refsource_CONFIRM
https://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64x_refsource_MISC
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0x_refsource_MISC
Impacted products
Vendor Product Version
gssapi gss-ntlmssp Version: < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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cve-2023-25563
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:12
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
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgfx_refsource_CONFIRM
https://github.com/gssapi/gss-ntlmssp/commit/97c62c6167299028d80765080e74d91dfc99efbdx_refsource_MISC
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0x_refsource_MISC
Impacted products
Vendor Product Version
gssapi gss-ntlmssp Version: < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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cve-2023-25564
Vulnerability from cvelistv5
Published
2023-02-14 17:35
Modified
2025-03-10 21:12
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
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.
References
https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-r85x-q5px-9xfqx_refsource_CONFIRM
https://github.com/gssapi/gss-ntlmssp/commit/c753000eb31835c0664e528fbc99378ae0cbe950x_refsource_MISC
https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0x_refsource_MISC
Impacted products
Vendor Product Version
gssapi gss-ntlmssp Version: < 1.2.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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