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    CVE-2015-7547

    Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing "dual A/AAAA DNS queries" and the libnss_dns.so.2 NSS module.

    Published:Feb 16, 2016
    Last Modified:Apr 12, 2025
    EPS:Feb 18, 2016
    EPSS Score:0.93421
    CVSS Score:8.1

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    F5
    Product
    Big-ip Access Policy Manager
    Vendor
    F5
    Product
    Big-ip Advanced Firewall Manager
    Vendor
    F5
    Product
    Big-ip Analytics
    Vendor
    F5
    Product
    Big-ip Application Acceleration Manager
    Vendor
    F5
    Product
    Big-ip Application Security Manager
    Vendor
    F5
    Product
    Big-ip Domain Name System
    Vendor
    F5
    Product
    Big-ip Link Controller
    Vendor
    F5
    Product
    Big-ip Local Traffic Manager
    Vendor
    F5
    Product
    Big-ip Policy Enforcement Manager
    Vendor
    Gnu
    Product
    Glibc
    Vendor
    Hp
    Product
    Helion Openstack
    Vendor
    Hp
    Product
    Server Migration Pack
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Oracle
    Product
    Exalogic Infrastructure
    Vendor
    Oracle
    Product
    Fujitsu M10 Firmware
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Hpc Node
    Vendor
    Redhat
    Product
    Enterprise Linux Hpc Node Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Mission Critical
    Vendor
    Sophos
    Product
    Unified Threat Management Software
    Vendor
    Suse
    Product
    Linux Enterprise Debuginfo
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Suse
    Product
    Linux Enterprise Software Development Kit
    Vendor
    Suse
    Product
    Suse Linux Enterprise Server

    Exploits

    https://www.exploit-db.com/exploits/39454https://github.com/Amilaperera12/Glibc-Vulnerability-Exploit-CVE-2015-7547https://github.com/babykillerblack/CVE-2015-7547https://github.com/bluebluelan/CVE-2015-7547-proj-masterhttps://github.com/cakuzo/CVE-2015-7547https://github.com/eSentire/cve-2015-7547-publichttps://github.com/fjserna/CVE-2015-7547https://github.com/jgajek/cve-2015-7547https://github.com/miracle03/CVE-2015-7547-masterhttps://github.com/rexifiles/rex-sec-glibchttps://github.com/Stick-U235/CVE-2015-7547-Researchhttps://github.com/t0r0t0r0/CVE-2015-7547https://www.exploit-db.com/exploits/40339

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.html
    http://marc.info/?l=bugtraq&m=145596041017029&w=2
    http://marc.info/?l=bugtraq&m=145672440608228&w=2
    http://marc.info/?l=bugtraq&m=145690841819314&w=2
    http://marc.info/?l=bugtraq&m=145857691004892&w=2
    http://marc.info/?l=bugtraq&m=146161017210491&w=2
    http://packetstormsecurity.com/files/135802/glibc-getaddrinfo-Stack-Based-Buffer-Overflow.html
    http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
    http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
    http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html
    http://rhn.redhat.com/errata/RHSA-2016-0175.html
    http://rhn.redhat.com/errata/RHSA-2016-0176.html
    http://rhn.redhat.com/errata/RHSA-2016-0225.html
    http://rhn.redhat.com/errata/RHSA-2016-0277.html
    http://seclists.org/fulldisclosure/2019/Sep/7
    http://seclists.org/fulldisclosure/2021/Sep/0
    http://seclists.org/fulldisclosure/2022/Jun/36
    http://support.citrix.com/article/CTX206991
    http://ubuntu.com/usn/usn-2900-1
    http://www.debian.org/security/2016/dsa-3480
    http://www.debian.org/security/2016/dsa-3481
    http://www.fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
    http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160304-01-glibc-en
    http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
    http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.securityfocus.com/bid/83265
    http://www.securitytracker.com/id/1035020
    http://www.vmware.com/security/advisories/VMSA-2016-0002.html
    https://access.redhat.com/articles/2161461
    https://blogs.sophos.com/2016/02/24/utm-up2date-9-355-released/
    https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
    https://bto.bluecoat.com/security-advisory/sa114
    https://bugzilla.redhat.com/show_bug.cgi?id=1293532
    https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html
    https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05028479
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04989404
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05008367
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05053211
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05073516
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05098877
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05125672
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05128937
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05130958
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05140858
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05176716
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05212266
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
    https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
    https://ics-cert.us-cert.gov/advisories/ICSA-16-103-01
    https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40161
    https://kc.mcafee.com/corporate/index?page=content&id=SB10150
    https://seclists.org/bugtraq/2019/Sep/7
    https://security.gentoo.org/glsa/201602-02
    https://security.netapp.com/advisory/ntap-20160217-0002/
    https://sourceware.org/bugzilla/show_bug.cgi?id=18665
    https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html
    https://support.f5.com/kb/en-us/solutions/public/k/47/sol47098834.html
    https://support.lenovo.com/us/en/product_security/len_5450
    https://www.arista.com/en/support/advisories-notices/security-advisories/1255-security-advisory-17
    https://www.exploit-db.com/exploits/39454/
    https://www.exploit-db.com/exploits/40339/
    https://www.kb.cert.org/vuls/id/457759
    https://www.tenable.com/security/research/tra-2017-08
    http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.html
    http://marc.info/?l=bugtraq&m=145596041017029&w=2
    http://marc.info/?l=bugtraq&m=145672440608228&w=2
    http://marc.info/?l=bugtraq&m=145690841819314&w=2
    http://marc.info/?l=bugtraq&m=145857691004892&w=2
    http://marc.info/?l=bugtraq&m=146161017210491&w=2
    http://packetstormsecurity.com/files/135802/glibc-getaddrinfo-Stack-Based-Buffer-Overflow.html
    http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
    http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
    http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html
    http://rhn.redhat.com/errata/RHSA-2016-0175.html
    http://rhn.redhat.com/errata/RHSA-2016-0176.html
    http://rhn.redhat.com/errata/RHSA-2016-0225.html
    http://rhn.redhat.com/errata/RHSA-2016-0277.html
    http://seclists.org/fulldisclosure/2019/Sep/7
    http://seclists.org/fulldisclosure/2021/Sep/0
    http://seclists.org/fulldisclosure/2022/Jun/36
    http://support.citrix.com/article/CTX206991
    http://ubuntu.com/usn/usn-2900-1
    http://www.debian.org/security/2016/dsa-3480
    http://www.debian.org/security/2016/dsa-3481
    http://www.fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
    http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160304-01-glibc-en
    http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
    http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.securityfocus.com/bid/83265
    http://www.securitytracker.com/id/1035020
    http://www.vmware.com/security/advisories/VMSA-2016-0002.html
    https://access.redhat.com/articles/2161461
    https://blogs.sophos.com/2016/02/24/utm-up2date-9-355-released/
    https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
    https://bto.bluecoat.com/security-advisory/sa114
    https://bugzilla.redhat.com/show_bug.cgi?id=1293532
    https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html
    https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05028479
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04989404
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05008367
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05053211
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05073516
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05098877
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05125672
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05128937
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05130958
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05140858
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05176716
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05212266
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
    https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
    https://ics-cert.us-cert.gov/advisories/ICSA-16-103-01
    https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40161
    https://kc.mcafee.com/corporate/index?page=content&id=SB10150
    https://seclists.org/bugtraq/2019/Sep/7
    https://security.gentoo.org/glsa/201602-02
    https://security.netapp.com/advisory/ntap-20160217-0002/
    https://sourceware.org/bugzilla/show_bug.cgi?id=18665
    https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html
    https://support.f5.com/kb/en-us/solutions/public/k/47/sol47098834.html
    https://support.lenovo.com/us/en/product_security/len_5450
    https://www.arista.com/en/support/advisories-notices/security-advisories/1255-security-advisory-17
    https://www.exploit-db.com/exploits/39454/
    https://www.exploit-db.com/exploits/40339/
    https://www.kb.cert.org/vuls/id/457759
    https://www.tenable.com/security/research/tra-2017-08

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High