fix various flaws (CVE-2008-2292 CVE-2008-0960)
This commit is contained in:
Jan Šafránek
parent
0b6f258dc7
commit
8f6b993902
18
net-snmp-5.4.1-hmac-check.patch
Normal file
18
net-snmp-5.4.1-hmac-check.patch
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@ -0,0 +1,18 @@
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447974: CVE-2008-0960 net-snmp SNMPv3 authentication bypass (VU#877044)
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Source: upstream, https://sourceforge.net/tracker/index.php?func=detail&aid=1989089&group_id=12694&atid=456380
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Reviewed-by: Jan Safranek <jsafrane@redhat.com>
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diff -up net-snmp-5.0.9/snmplib/scapi.c.orig net-snmp-5.0.9/snmplib/scapi.c
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--- net-snmp-5.0.9/snmplib/scapi.c.orig 2008-06-04 10:19:26.000000000 +0200
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+++ net-snmp-5.0.9/snmplib/scapi.c 2008-06-04 10:20:45.000000000 +0200
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@@ -460,6 +460,9 @@ sc_check_keyed_hash(const oid * authtype
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QUITFUN(SNMPERR_GENERR, sc_check_keyed_hash_quit);
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}
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+ if (maclen != USM_MD5_AND_SHA_AUTH_LEN) {
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+ QUITFUN(SNMPERR_GENERR, sc_check_keyed_hash_quit);
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+ }
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/*
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* Generate a full hash of the message, then compare
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106
net-snmp-5.4.1-perl-snprintf.patch
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106
net-snmp-5.4.1-perl-snprintf.patch
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@ -0,0 +1,106 @@
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447262: CVE-2008-2292 net-snmp: buffer overflow in perl module's Perl Module __snprint_value()
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Source: upstream, http://net-snmp.svn.sourceforge.net/viewvc/net-snmp?view=rev&sortby=date&revision=16770
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Reviewed-By: Jan Safranek <jsafrane@redhat.com>
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--- branches/V5-4-patches/net-snmp/perl/SNMP/SNMP.xs 2007/12/21 23:19:29 16769
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+++ branches/V5-4-patches/net-snmp/perl/SNMP/SNMP.xs 2007/12/22 19:22:44 16770
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@@ -470,14 +470,16 @@
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if (flag == USE_ENUMS) {
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for(ep = tp->enums; ep; ep = ep->next) {
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if (ep->value == *var->val.integer) {
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- strcpy(buf, ep->label);
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+ strncpy(buf, ep->label, buf_len);
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+ buf[buf_len-1] = '\0';
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len = strlen(buf);
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break;
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}
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}
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}
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if (!len) {
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- sprintf(buf,"%ld", *var->val.integer);
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+ snprintf(buf, buf_len, "%ld", *var->val.integer);
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+ buf[buf_len-1] = '\0';
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len = strlen(buf);
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}
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break;
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@@ -486,21 +488,25 @@
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case ASN_COUNTER:
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case ASN_TIMETICKS:
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case ASN_UINTEGER:
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- sprintf(buf,"%lu", (unsigned long) *var->val.integer);
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+ snprintf(buf, buf_len, "%lu", (unsigned long) *var->val.integer);
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+ buf[buf_len-1] = '\0';
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len = strlen(buf);
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break;
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case ASN_OCTET_STR:
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case ASN_OPAQUE:
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- memcpy(buf, (char*)var->val.string, var->val_len);
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len = var->val_len;
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+ if ( len > buf_len )
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+ len = buf_len;
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+ memcpy(buf, (char*)var->val.string, len);
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break;
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case ASN_IPADDRESS:
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- ip = (u_char*)var->val.string;
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- sprintf(buf, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
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- len = strlen(buf);
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- break;
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+ ip = (u_char*)var->val.string;
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+ snprintf(buf, buf_len, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
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+ buf[buf_len-1] = '\0';
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+ len = strlen(buf);
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+ break;
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case ASN_NULL:
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break;
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@@ -512,14 +518,14 @@
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break;
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case SNMP_ENDOFMIBVIEW:
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- sprintf(buf,"%s", "ENDOFMIBVIEW");
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- break;
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+ snprintf(buf, buf_len, "%s", "ENDOFMIBVIEW");
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+ break;
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case SNMP_NOSUCHOBJECT:
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- sprintf(buf,"%s", "NOSUCHOBJECT");
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- break;
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+ snprintf(buf, buf_len, "%s", "NOSUCHOBJECT");
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+ break;
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case SNMP_NOSUCHINSTANCE:
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- sprintf(buf,"%s", "NOSUCHINSTANCE");
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- break;
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+ snprintf(buf, buf_len, "%s", "NOSUCHINSTANCE");
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+ break;
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case ASN_COUNTER64:
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#ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES
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@@ -538,19 +544,19 @@
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#endif
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case ASN_BIT_STR:
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- snprint_bitstring(buf, sizeof(buf), var, NULL, NULL, NULL);
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+ snprint_bitstring(buf, buf_len, var, NULL, NULL, NULL);
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len = strlen(buf);
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break;
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#ifdef NETSNMP_WITH_OPAQUE_SPECIAL_TYPES
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case ASN_OPAQUE_FLOAT:
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- if (var->val.floatVal)
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- sprintf(buf,"%f", *var->val.floatVal);
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- break;
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+ if (var->val.floatVal)
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+ snprintf(buf, buf_len, "%f", *var->val.floatVal);
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+ break;
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case ASN_OPAQUE_DOUBLE:
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- if (var->val.doubleVal)
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- sprintf(buf,"%f", *var->val.doubleVal);
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- break;
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+ if (var->val.doubleVal)
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+ snprintf(buf, buf_len, "%f", *var->val.doubleVal);
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+ break;
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#endif
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case ASN_NSAP:
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@ -7,7 +7,7 @@
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Summary: A collection of SNMP protocol tools and libraries
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Name: net-snmp
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Version: %{major_ver}
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Release: 18%{?dist}
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Release: 19%{?dist}
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Epoch: 1
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License: BSD and MIT
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@ -39,6 +39,8 @@ Patch13: net-snmp-5.4.1-shared-ip.patch
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Patch14: net-snmp-5.4-exec-crash.patch
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Patch15: net-snmp-5.4.1-sensors3.patch
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Patch16: net-snmp-5.4.1-xen-crash.patch
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Patch17: net-snmp-5.4.1-hmac-check.patch
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Patch18: net-snmp-5.4.1-perl-snprintf.patch
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Requires(pre): chkconfig
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Requires(post): chkconfig
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@ -169,6 +171,8 @@ and applications.
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%patch14 -p1 -b .exec
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%patch15 -p0 -b .sensors
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%patch16 -p0 -b .xen-crash
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%patch17 -p1 -b .hmac-check
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%patch18 -p3 -b .perl-snprintf
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# Do this patch with a perl hack...
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perl -pi -e "s|'\\\$install_libdir'|'%{_libdir}'|" ltmain.sh
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@ -385,6 +389,9 @@ rm -rf ${RPM_BUILD_ROOT}
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%{_libdir}/lib*.so.*
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%changelog
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* Tue Jun 10 2008 Jan Safranek <jsafranek@redhat.com> 5.4.1-19
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- fix various flaws (CVE-2008-2292 CVE-2008-0960)
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* Sat May 31 2008 Dennis Gilmore <dennis@ausil.us> 5.4.1-18
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- fix sparc handling in /usr/bin/net-snmp-config
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