# 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.

- Page: https://www.vulneraibility.com/cve/CVE-2015-7547
- CVSS: 8.1
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 92.38% (percentile 99.8)
- Public exploit code: 2 on Exploit-DB · 11 GitHub proofs of concept (first 2016-02-10)
- Published: 2016-02-18

## Affected

- debian:debian_linux
- canonical:ubuntu_linux
- hp:helion_openstack
- hp:server_migration_pack
- sophos:unified_threat_management_software
- suse:linux_enterprise_debuginfo
- opensuse:opensuse
- suse:linux_enterprise_desktop
- suse:linux_enterprise_server
- suse:linux_enterprise_software_development_kit
- suse:suse_linux_enterprise_server
- oracle:exalogic_infrastructure
- f5:big-ip_access_policy_manager
- f5:big-ip_advanced_firewall_manager
- f5:big-ip_analytics
- f5:big-ip_application_acceleration_manager
- f5:big-ip_application_security_manager
- f5:big-ip_domain_name_system
- f5:big-ip_link_controller
- f5:big-ip_local_traffic_manager
- f5:big-ip_policy_enforcement_manager
- oracle:fujitsu_m10_firmware
- redhat:enterprise_linux_desktop
- redhat:enterprise_linux_hpc_node
- redhat:enterprise_linux_hpc_node_eus
- redhat:enterprise_linux_server
- redhat:enterprise_linux_server_aus
- redhat:enterprise_linux_server_eus
- redhat:enterprise_linux_workstation
- gnu:glibc

## References

- [other] http://www.securitytracker.com/id/1035020
- [advisory] http://marc.info/?l=bugtraq&m=146161017210491&w=2
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
- [advisory] http://rhn.redhat.com/errata/RHSA-2016-0175.html
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05140858
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05125672
- [other] https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
- [other] https://sourceware.org/bugzilla/show_bug.cgi?id=18665
- [advisory] http://marc.info/?l=bugtraq&m=145857691004892&w=2
- [advisory] http://rhn.redhat.com/errata/RHSA-2016-0225.html
- [advisory] http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html
- [other] https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40161
- [advisory] http://www.debian.org/security/2016/dsa-3481
- [other] http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html
- [advisory] http://ubuntu.com/usn/usn-2900-1
- [other] http://www.fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917
- [advisory] http://rhn.redhat.com/errata/RHSA-2016-0277.html
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html
- [other] https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html
- [other] http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- [other] https://security.netapp.com/advisory/ntap-20160217-0002/
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
- [other] https://blogs.sophos.com/2016/02/24/utm-up2date-9-355-released/
- [other] https://support.lenovo.com/us/en/product_security/len_5450
- [other] https://www.tenable.com/security/research/tra-2017-08
- [other] http://www.vmware.com/security/advisories/VMSA-2016-0002.html
- [advisory] http://marc.info/?l=bugtraq&m=145672440608228&w=2
- [other] http://www.securityfocus.com/bid/83265
- [other] http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
- [advisory] https://security.gentoo.org/glsa/201602-02
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05128937
- [advisory] http://marc.info/?l=bugtraq&m=145596041017029&w=2
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
- [exploit] https://www.exploit-db.com/exploits/40339/
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05098877
- [other] https://bto.bluecoat.com/security-advisory/sa114
- [other] https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html
- [advisory] http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
- [other] https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- [other] http://packetstormsecurity.com/files/135802/glibc-getaddrinfo-Stack-Based-Buffer-Overflow.html
- [other] https://bugzilla.redhat.com/show_bug.cgi?id=1293532
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05008367
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05176716
- [other] https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05053211
- [other] http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- [other] https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05028479

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.