FKIE_CVE-2015-8777
Vulnerability from fkie_nvd - Published: 2016-01-20 05:59 - Updated: 2026-06-17 00:35
Severity
Summary
The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E1E32895-9C7B-4DE8-9BB5-0177406EB761",
"versionEndIncluding": "2.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable."
},
{
"lang": "es",
"value": "La funci\u00f3n process_envvars en elf/rtld.c en la GNU C Library (tambi\u00e9n conocida como glibc o libc6) en versiones anteriores a 2.23 permite a usuarios locales eludir un mecanismo de protecci\u00f3n de puntero a trav\u00e9s de un valor cero de la variable de entorno LD_POINTER_GUARD."
}
],
"id": "CVE-2015-8777",
"lastModified": "2026-06-17T00:35:13.493",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2016-01-20T05:59:01.237",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Exploit"
],
"url": "http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2016/dsa-3480"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2016/01/20/1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/81469"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securitytracker.com/id/1034811"
},
{
"source": "secalert@redhat.com",
"url": "http://www.ubuntu.com/usn/USN-2985-1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.ubuntu.com/usn/USN-2985-2"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2017:1916"
},
{
"source": "secalert@redhat.com",
"url": "https://security.gentoo.org/glsa/201702-11"
},
{
"source": "secalert@redhat.com",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=18928"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2016/dsa-3480"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2016/01/20/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/81469"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1034811"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/USN-2985-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/USN-2985-2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2017:1916"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201702-11"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=18928"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-254"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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