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glibc-utils.7805
nss-dns-getnetbyname.patch
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File nss-dns-getnetbyname.patch of Package glibc-utils.7805
2016-03-29 Florian Weimer <fweimer@redhat.com> [BZ #19879] CVE-2016-3075 * resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r): Do not copy name. Index: glibc-2.22/resolv/nss_dns/dns-network.c =================================================================== --- glibc-2.22.orig/resolv/nss_dns/dns-network.c +++ glibc-2.22/resolv/nss_dns/dns-network.c @@ -118,17 +118,14 @@ _nss_dns_getnetbyname_r (const char *nam } net_buffer; querybuf *orig_net_buffer; int anslen; - char *qbuf; enum nss_status status; if (__res_maybe_init (&_res, 0) == -1) return NSS_STATUS_UNAVAIL; - qbuf = strdupa (name); - net_buffer.buf = orig_net_buffer = (querybuf *) alloca (1024); - anslen = __libc_res_nsearch (&_res, qbuf, C_IN, T_PTR, net_buffer.buf->buf, + anslen = __libc_res_nsearch (&_res, name, C_IN, T_PTR, net_buffer.buf->buf, 1024, &net_buffer.ptr, NULL, NULL, NULL, NULL); if (anslen < 0) {
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