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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 92.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 92.38% probability · 100th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 16 February 2016
- CISA KEV
- Not listed
- Weakness
- CWE-119
- 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 · +10 more
- Source
- secalert@redhat.com
EPSS moved from 89.0% on 21 September 2026 to 92.4% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
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.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.htmlThird Party Advisory
- 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.htmlThird Party Advisory
- 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-2900-1Third Party Advisory
- http://www.debian.org/security/2016/dsa-3480
- http://www.debian.org/security/2016/dsa-3481Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.