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CVE-2015-7547

Published: Feb 18, 2016Updated: May 6, 2026 Sources: CVE List NVD BDU csafCWE-119
NVD MITRE
8.1CVSSHIGH
EPSS Score
89.6%
Top 0.2%
CISA KEV
Not in KEV
Exploits
6 Known
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

debian linuxdebian
On-premOS
Operating Systems / linux-distro
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
helion openstackhp
On-prem
Enterprise Software / itsm-monitoring
server migration packhp
On-prem
Enterprise Software / itsm-monitoring
unified threat management softwaresophosSecurity Products
debianoss-projectGBOperating Systemsaka debian gnu/linux
canonicalcommercialGBOperating Systemsaka canonical ltd.
hpcommercialUSEnterprise Softwareaka hewlett packard, hpe
sophoscommercialGBSecurity Productsaka sophos ltd.
and 28 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

6 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow
fortiguard.com
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html
lists.fedoraproject.org
and 88 more references View all →

Timeline

Published
Feb 18, 2016
Last Updated
May 6, 2026

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