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openSUSE:12.3:Update
php5
php-5.3.17-CVE-2014-4049.patch
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File php-5.3.17-CVE-2014-4049.patch of Package php5
From 4f73394fdd95d3165b4391e1b0dedd57fced8c3b Mon Sep 17 00:00:00 2001 From: Sara Golemon <pollita@php.net> Date: Tue, 10 Jun 2014 11:18:02 -0700 Subject: [PATCH] Fix potential segfault in dns_get_record() If the remote sends us a packet with a malformed TXT record, we could end up trying to over-consume the packet and wander off into overruns. --- ext/standard/dns.c | 4 ++++ 1 file changed, 4 insertions(+) --- ext/standard/dns.c +++ ext/standard/dns.c @@ -517,6 +517,10 @@ static u_char *php_parserr(u_char *cp, querybuf *answer, int type_to_fetch, int while (ll < dlen) { n = cp[ll]; + if ((ll + n) >= dlen) { + // Invalid chunk length, truncate + n = dlen - (ll + 1); + } memcpy(tp + ll , cp + ll + 1, n); add_next_index_stringl(entries, cp + ll + 1, n, 1); ll = ll + n + 1; -- 1.9.3
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