Carlos O'Donell e9db92d3ac CVE-2015-7547: getaddrinfo() stack-based buffer overflow (Bug 18665). ... * A stack-based buffer overflow was found in libresolv when invoked from libnss_dns, allowing specially crafted DNS responses to seize control of execution flow in the DNS client. The buffer overflow occurs in the functions send_dg (send datagram) and send_vc (send TCP) for the NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC family. The use of AF_UNSPEC triggers the low-level resolver code to send out two parallel queries for A and AAAA. A mismanagement of the buffers used for those queries could result in the response of a query writing beyond the alloca allocated buffer created by _nss_dns_gethostbyname4_r. Buffer management is simplified to remove the overflow. Thanks to the Google Security Team and Red Hat for reporting the security impact of this issue, and Robert Holiday of Ciena for reporting the related bug 18665. (CVE-2015-7547) See also: https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html https://sourceware.org/ml/libc-alpha/2016-02/msg00418.html		2016-02-16 21:29:32 -05:00
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dns-canon.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
dns-host.c	CVE-2015-7547: getaddrinfo() stack-based buffer overflow (Bug 18665).	2016-02-16 21:29:32 -05:00
dns-network.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00