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.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 30 products from debian, from canonical, from hp and 27 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2016-02-18T21:59:00.120
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 8.1 (HIGH)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | debian | debian_linux | 8.0 | Yes |
| Operating System | canonical | ubuntu_linux | 12.04 | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 15.10 | Yes |
| Application | hp | helion_openstack | 1.1.1 | Yes |
| Application | hp | helion_openstack | 2.0.0 | Yes |
| Application | hp | helion_openstack | 2.1.0 | Yes |
| Application | hp | server_migration_pack | 7.5 | Yes |
| Application | sophos | unified_threat_management_software | 9.319 | Yes |
| Application | sophos | unified_threat_management_software | 9.355 | Yes |
| Application | suse | linux_enterprise_debuginfo | 11.0 | Yes |
| Application | suse | linux_enterprise_debuginfo | 11.0 | Yes |
| Application | suse | linux_enterprise_debuginfo | 11.0 | Yes |
| Operating System | opensuse | opensuse | 13.2 | Yes |
| Operating System | suse | linux_enterprise_desktop | 11.0 | Yes |
| Operating System | suse | linux_enterprise_desktop | 11.0 | Yes |
| Operating System | suse | linux_enterprise_desktop | 12 | Yes |
| Operating System | suse | linux_enterprise_desktop | 12 | Yes |
| Operating System | suse | linux_enterprise_server | 11.0 | Yes |
| Operating System | suse | linux_enterprise_server | 11.0 | Yes |
| Operating System | suse | linux_enterprise_server | 11.0 | Yes |
| Operating System | suse | linux_enterprise_server | 11.0 | Yes |
| Operating System | suse | linux_enterprise_server | 12 | Yes |
| Operating System | suse | linux_enterprise_software_development_kit | 11.0 | Yes |
| Operating System | suse | linux_enterprise_software_development_kit | 11.0 | Yes |
| Operating System | suse | linux_enterprise_software_development_kit | 12 | Yes |
| Operating System | suse | linux_enterprise_software_development_kit | 12 | Yes |
| Operating System | suse | suse_linux_enterprise_server | 12 | Yes |
| Application | oracle | exalogic_infrastructure | 1.0 | Yes |
| Application | oracle | exalogic_infrastructure | 2.0 | Yes |
| Application | f5 | big-ip_access_policy_manager | 12.0.0 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | 12.0.0 | Yes |
| Application | f5 | big-ip_analytics | 12.0.0 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | 12.0.0 | Yes |
| Application | f5 | big-ip_application_security_manager | 12.0.0 | Yes |
| Application | f5 | big-ip_domain_name_system | 12.0.0 | Yes |
| Application | f5 | big-ip_link_controller | 12.0.0 | Yes |
| Application | f5 | big-ip_local_traffic_manager | 12.0.0 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | 12.0.0 | Yes |
| Operating System | oracle | fujitsu_m10_firmware | ≤ 2290 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_hpc_node | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_hpc_node_eus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_server | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_server_eus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 7.0 | Yes |
| Application | gnu | glibc | 2.9 | Yes |
| Application | gnu | glibc | 2.10 | Yes |
| Application | gnu | glibc | 2.10.1 | Yes |
| Application | gnu | glibc | 2.11 | Yes |
| Application | gnu | glibc | 2.11.1 | Yes |
| Application | gnu | glibc | 2.11.2 | Yes |
| Application | gnu | glibc | 2.11.3 | Yes |
| Application | gnu | glibc | 2.12 | Yes |
| Application | gnu | glibc | 2.12.1 | Yes |
| Application | gnu | glibc | 2.12.2 | Yes |
| Application | gnu | glibc | 2.13 | Yes |
| Application | gnu | glibc | 2.14 | Yes |
| Application | gnu | glibc | 2.14.1 | Yes |
| Application | gnu | glibc | 2.15 | Yes |
| Application | gnu | glibc | 2.16 | Yes |
| Application | gnu | glibc | 2.17 | Yes |
| Application | gnu | glibc | 2.18 | Yes |
| Application | gnu | glibc | 2.19 | Yes |
| Application | gnu | glibc | 2.20 | Yes |
| Application | gnu | glibc | 2.21 | Yes |
| Application | gnu | glibc | 2.22 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For debian's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.