CVE-2023-25566

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Source
https://cve.org/CVERecord?id=CVE-2023-25566
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-25566.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-25566
Aliases
  • GHSA-mfm4-6g58-jw74
Downstream
Related
Published
2023-02-14T17:35:48.482Z
Modified
2026-07-09T06:02:15.639338Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
GSS-NTLMSSP vulnerable to memory leak when parsing usernames
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25566.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-401"
    ]
}
References

Affected packages

Git / github.com/gssapi/gss-ntlmssp

Affected ranges

Type
GIT
Repo
https://github.com/gssapi/gss-ntlmssp
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3c3077e2a24b47db1b4c459fb3173ba7f75b9b44
Fixed
8660fb16474054e692a596e9c79670cd4d3954f4
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.0"
        }
    ]
}

Affected versions

0.*
0.8.0
v0.*
v0.1.0
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.1.0

Database specific

vanir_signatures_modified 
"2026-07-09T06:02:15Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-25566.json"
vanir_signatures 
[
    {
        "id": "CVE-2023-25566-8a504435",
        "digest": {
            "line_hashes": [
                "328030147469510282739970245306179253895",
                "194038206146445467428513869267544045323",
                "243046179584842711255844825295295630500",
                "147109741442370784426726933143972938946",
                "295539985142122397152785614327741755775",
                "230200245471016897679797279147581073109",
                "52323966078945608081504747393551146860",
                "327204053187311149587013198362071118088",
                "84185250257314089482765170898075235546",
                "238743680530611755997188088921867233726",
                "11623135887812951417746352207963191015",
                "174384045762679156768111054739520285510",
                "260288007520182714382309927448782770120",
                "229664254969040605935054631629870701826",
                "289090628858495618646590899666808315140",
                "318191227097387534282501282670122303574"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4",
        "deprecated": false,
        "target": {
            "file": "src/gss_names.c"
        }
    },
    {
        "id": "CVE-2023-25566-e0be0cbb",
        "digest": {
            "function_hash": "258485927801885407370731171782633631763",
            "length": 1766.0
        },
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4",
        "deprecated": false,
        "target": {
            "function": "parse_user_name",
            "file": "src/gss_names.c"
        }
    }
]