Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.18 and earlier allows remote attackers to cause a denial of service (crash) via a (1) hostname or (2) IP address that triggers a large number of AF_INET6 address results. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1914.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://sourceware.org/ml/libc-alpha/2013-10/msg00733.html | mailing list patch |
| http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:284 | vendor advisory |
| https://security.gentoo.org/glsa/201503-04 | vendor advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:283 | vendor advisory |
| https://sourceware.org/bugzilla/show_bug.cgi?id=16072 | exploit |