CVE-2015-7547 EXPLOIT
8.1
HIGH · CVSS 3.0 · EPSS 91% (pctl 100)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.1 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 90.99% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2016-02-18 |
| Last modified | 2026-06-17 |
Affected (30)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| 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 |
| f5 | big-ip policy enforcement manager |
| gnu | glibc |
| hp | helion openstack |
| hp | server migration pack |
| opensuse | opensuse |
| oracle | exalogic infrastructure |
| oracle | fujitsu m10 firmware |
| redhat | enterprise linux desktop |
| redhat | enterprise linux hpc node |
| redhat | enterprise linux hpc node eus |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux workstation |
| sophos | unified threat management software |
| suse | linux enterprise debuginfo |
| suse | linux enterprise desktop |
| suse | linux enterprise server |
| suse | linux enterprise software development kit |
| suse | suse linux enterprise server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | glibc - 'getaddrinfo' Remote Stack Buffer Overflow | 2016-09-06 |
| exploit-db | glibc - 'getaddrinfo' Stack Buffer Overflow (PoC) | 2016-02-16 |
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.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.html
- 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
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