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...
- Published
- Feb 18, 2016
- Updated
- Aug 6, 2024
- Assigning CNA
- redhat
- Evidence observed
- Feb 16, 2016
Primary CVSS
nvd · CVSS 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
13Proof-of-concept exploit for CVE-2015-7547, a glibc getaddrinfo() stack-based buffer overflow. Includes server and client components to trigger the vulnerability and crash the client.
- CVE-2015-7547Detection
Shell script to detect glibc CVE-2015-7547 vulnerability on RPM-based systems, with verification steps and guidance for remediation.
Responsible use
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