043c4769d6
- Import patches from 2.23 branch (forwarded request 394998 from Andreas_Schwab) OBS-URL: https://build.opensuse.org/request/show/394999 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/glibc?expand=0&rev=202
20 lines
602 B
Diff
20 lines
602 B
Diff
2016-05-02 Florian Weimer <fweimer@redhat.com>
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[BZ #20031]
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* hesiod/hesiod.c (get_txt_records): Return error if TXT record is
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completely empty.
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Index: glibc-2.23/hesiod/hesiod.c
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===================================================================
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--- glibc-2.23.orig/hesiod/hesiod.c
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+++ glibc-2.23/hesiod/hesiod.c
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@@ -411,7 +411,7 @@ get_txt_records(struct hesiod_p *ctx, in
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cp += INT16SZ + INT32SZ; /* skip the ttl, too */
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rr.dlen = ns_get16(cp);
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cp += INT16SZ;
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- if (cp + rr.dlen > eom) {
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+ if (rr.dlen == 0 || cp + rr.dlen > eom) {
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__set_errno(EMSGSIZE);
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goto cleanup;
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}
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