CVE-2015-8777 (GCVE-0-2015-8777)
Vulnerability from cvelistv5
Published
2016-01-20 02:00
Modified
2024-08-06 08:29
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
secalert@redhat.comhttp://hmarco.org/bugs/glibc_ptr_mangle_weakness.htmlExploit
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
secalert@redhat.comhttp://www.debian.org/security/2016/dsa-3480
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/01/20/1
secalert@redhat.comhttp://www.securityfocus.com/bid/81469
secalert@redhat.comhttp://www.securitytracker.com/id/1034811
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2985-1
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2985-2
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2017:1916
secalert@redhat.comhttps://security.gentoo.org/glsa/201702-11
secalert@redhat.comhttps://sourceware.org/bugzilla/show_bug.cgi?id=18928
af854a3a-2127-422b-91ae-364da2661108http://hmarco.org/bugs/glibc_ptr_mangle_weakness.htmlExploit
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3480
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/01/20/1
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/81469
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034811
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2985-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2985-2
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2017:1916
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201702-11
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/bugzilla/show_bug.cgi?id=18928
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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      datePublished: "2016-01-20T02:00:00",
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         id: "CVE-2015-8777",
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         published: "2016-01-20T05:59:01.237",
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         sourceIdentifier: "secalert@redhat.com",
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      },
      nvd: "{\"cve\":{\"id\":\"CVE-2015-8777\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2016-01-20T05:59:01.237\",\"lastModified\":\"2025-04-12T10:46:40.837\",\"vulnStatus\":\"Deferred\",\"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 función process_envvars en elf/rtld.c en la GNU C Library (también conocida como glibc o libc6) en versiones anteriores a 2.23 permite a usuarios locales eludir un mecanismo de protección de puntero a través 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\"}]}}",
   },
}


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