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Red Hat Bugzilla – Attachment 580443 Details for
Bug 815813
CVE-2012-2141 net-snmp: Array index error, leading to out-of heap-based buffer read (snmpd crash)
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[patch]
simple fix
net-snmp-extend-crash.patch (text/plain), 917 bytes, created by
Jan Safranek
on 2012-04-26 11:34:47 UTC
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Description:
simple fix
Filename:
MIME Type:
Creator:
Jan Safranek
Created:
2012-04-26 11:34:47 UTC
Size:
917 bytes
patch
obsolete
>commit 441a2998096eacd6e085a271b258bd41e29b340f >Author: Jan Safranek <jsafranek@users.sourceforge.net> >Date: Thu Apr 26 13:33:42 2012 +0200 > > Check out-of-index conditions in ExtendOutput2Table. > >diff --git a/agent/mibgroup/agent/extend.c b/agent/mibgroup/agent/extend.c >index 8268559..e7f09fd 100644 >--- a/agent/mibgroup/agent/extend.c >+++ b/agent/mibgroup/agent/extend.c >@@ -1401,6 +1401,10 @@ handle_nsExtendOutput2Table(netsnmp_mib_handler *handler, > * Determine which line we've been asked for.... > */ > line_idx = *table_info->indexes->next_variable->val.integer; >+ if (line_idx < 1 || line_idx > extension->numlines) { >+ netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE); >+ continue; >+ } > cp = extension->lines[line_idx-1]; > > /*
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