Servers and applications
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…
- Severity
- High 8.1
- Published
- 18 Feb 2016
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 92% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 11 Nov 2026
- Weakness
- Memory buffer errors (CWE-119)
- Attack
- Over the network · Only under certain conditions · No login needed · No user action needed
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Sources
- NVD
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.
Affected software
| Software | Affected versions |
|---|---|
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager |
|
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager |
|
GNU C LibraryServers and applications · cpe:a:gnu:glibc |
All 21 release lines
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