Vulnerability-Lookup

CVE-2015-8777 (GCVE-0-2015-8777)

Vulnerability from cvelistv5 – Published: 2016-01-20 02:00 – Updated: 2024-08-06 08:29

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.

Severity

5.5 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CWE

Assigner

redhat redhat root

References

15 references

URL	Tags
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2017:1916	vendor-advisoryx_refsource_REDHAT
http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.ubuntu.com/usn/USN-2985-2	vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2016/01/20/1	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201702-11	vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/bid/81469	vdb-entryx_refsource_BID
https://sourceware.org/bugzilla/show_bug.cgi?id=18928	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.debian.org/security/2016/dsa-3480	vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2985-1	vendor-advisoryx_refsource_UBUNTU
http://www.securitytracker.com/id/1034811	vdb-entryx_refsource_SECTRACK

Date Public

2015-09-05 00:00

Show details on NVD website

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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2015-8777\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2016-01-20T05:59:01.237\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"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.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:N/I:P/A:N\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-254\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.22\",\"matchCriteriaId\":\"E1E32895-9C7B-4DE8-9BB5-0177406EB761\"}]}]}],\"references\":[{\"url\":\"http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\"]},{\"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\":\"secalert@redhat.com\"},{\"url\":\"http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\"]},{\"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\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T12:11:08+00:00",
      "cve": "CVE-2015-8777",
      "id": "CVE-2015-8777",
      "initial_release_date": "2015-09-05T00:00:00+00:00",
      "product_status:fixed": "480",
      "product_status:known_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "glibc: LD_POINTER_GUARD in the environment is not sanitized",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-8777.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-01T02:24:32Z",
      "cve": "CVE-2015-8777",
      "id": "CVE-2015-8777",
      "initial_release_date": "2023-02-15T05:11:01Z",
      "product_status:known_affected": "321",
      "product_status:known_not_affected": "133",
      "product_status:recommended": "1418",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2015-8777",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-8777.json",
      "version": "39"
    }
  }
}

SUSE-SU-2016:0473-1

Vulnerability from csaf_suse - Published: 2016-02-16 15:20 - Updated: 2016-02-16 15:20

Summary

Security update for glibc

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2015-8777.

CVE-2015-8777

5.5 (Medium)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Recommended: 63 products

Open the full advisory

SUSE-SU-2016:0748-1

Vulnerability from csaf_suse - Published: 2016-03-14 13:31 - Updated: 2016-03-14 13:31

Summary

Security update for sles12sp1-docker-image

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2015-8777.

CVE-2015-8777

5.5 (Medium)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Recommended: 3 products

Open the full advisory

SUSE-SU-2016:0778-1

Vulnerability from csaf_suse - Published: 2016-03-15 17:01 - Updated: 2016-03-15 17:01

Summary

Security update for sles11sp4-docker-image

Severity

Important

Scope

16 vulnerabilities in this advisory, including CVE-2015-8777.

CVE-2015-8777

5.5 (Medium)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Recommended: 2 products

Open the full advisory

SUSE-SU-2016:0786-1

Vulnerability from csaf_suse - Published: 2016-03-16 10:28 - Updated: 2016-03-16 10:28

Summary

Security update for sles12-docker-image

Severity

Important

Scope

31 vulnerabilities in this advisory, including CVE-2015-8777.

CVE-2015-8777

5.5 (Medium)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Recommended: 3 products

Open the full advisory

ubuntu-cve-2015-8777

Vulnerability from osv_ubuntu

Published

2016-01-20 00:00

Modified

2026-04-22 07:37

Summary

Details

Severity

5.5 (Medium)


                    
                      CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2015-8777	REPORT
	http://www.openwall.com/lists/oss-security/2015/09/05/8	REPORT
	http://www.openwall.com/lists/oss-security/2016/01/20/1	REPORT
	http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html	REPORT
	https://ubuntu.com/security/notices/USN-2985-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2015-8777	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "eglibc-source",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc-bin",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc-dev-bin",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-amd64",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-armel",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-dev-amd64",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-dev-armel",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-dev-i386",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-dev-ppc64",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-dev-x32",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-i386",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-pic",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-ppc64",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-prof",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "libc6-x32",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "multiarch-support",
            "binary_version": "2.19-0ubuntu6.8"
          },
          {
            "binary_name": "nscd",
            "binary_version": "2.19-0ubuntu6.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "eglibc",
        "purl": "pkg:deb/ubuntu/eglibc@2.19-0ubuntu6.8?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.19-0ubuntu6.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.17-93ubuntu4",
        "2.18-0ubuntu1",
        "2.18-0ubuntu2",
        "2.18-0ubuntu4",
        "2.18-0ubuntu5",
        "2.18-0ubuntu6",
        "2.18-0ubuntu7",
        "2.19-0ubuntu2",
        "2.19-0ubuntu3",
        "2.19-0ubuntu4",
        "2.19-0ubuntu5",
        "2.19-0ubuntu6",
        "2.19-0ubuntu6.1",
        "2.19-0ubuntu6.3",
        "2.19-0ubuntu6.4",
        "2.19-0ubuntu6.5",
        "2.19-0ubuntu6.6",
        "2.19-0ubuntu6.7"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2015-8777",
  "modified": "2026-04-22T07:37:52Z",
  "published": "2016-01-20T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-8777"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2015/09/05/8"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2016/01/20/1"
    },
    {
      "type": "REPORT",
      "url": "http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2985-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-8777"
    }
  ],
  "related": [
    "USN-2985-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-8777"
  ]
}

WID-SEC-W-2023-0974

Vulnerability from csaf_certbund - Published: 2016-01-19 23:00 - Updated: 2023-04-16 22:00

Summary

GNU libc: Mehrere Schwachstellen

Severity

Mittel

Scope

5 vulnerabilities in this advisory, including CVE-2015-8777.

CVE-2015-8777

In GNU libc existieren mehrere Schwachstellen. Ein entfernter, anonymer Angreifer kann diese Schwachstellen ausnutzen, um beliebigen Code auszuführen, um Sicherheitsfunktionen zu umgehen, um Informationen offenzulegen oder um einen Denial of Service Zustand hervorzurufen.

Known affected: 8 products

Open the full advisory

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2015-8777 (GCVE-0-2015-8777)

SUSE-SU-2016:0473-1

SUSE-SU-2016:0748-1

SUSE-SU-2016:0778-1

SUSE-SU-2016:0786-1

ubuntu-cve-2015-8777

Vulnerability from osv_ubuntu

WID-SEC-W-2023-0974

Tags

Sightings

Nomenclature