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             AUSCERT External Security Bulletin Redistribution

        JSA10991 - 2020-01 Security Bulletin: SBR Carrier: Multiple
                        Vulnerabilities in Net-SNMP
                              10 January 2020


        AusCERT Security Bulletin Summary

Product:           Juniper SBR Carrier
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Denial of Service               -- Remote/Unauthenticated
                   Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-5621 CVE-2014-3565 CVE-2014-2310
                   CVE-2012-6151 CVE-2008-6123 CVE-2008-4309

Reference:         ESB-2015.2655

Original Bulletin: 

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2020-01 Security Bulletin: SBR Carrier: Multiple Vulnerabilities in Net-SNMP

Article ID  : JSA10991
Last Updated: 08 Jan 2020
Version     : 1.0

Product Affected:
These issues affect Juniper Networks SBR Carrier versions prior to 8.4.1R19.

Multiple vulnerabilities in Net-SNMP have been resolved in the Juniper Networks
Steel-Belted Radius (SBR) Carrier AAA (Authentication, Authorization, and
Accounting) server.

These issues affect Juniper Networks SBR Carrier versions prior to 8.4.1R19.

Juniper SIRT is not aware of any malicious exploitation of these

These issues were discovered during an external security research.

Net-SNMP in SBR Carrier has been upgraded to Net-SNMP 5.8 which resolved the
following vulnerabilities in Net-SNMP:

     CVE        CVSS                            Summary
              7.8 (AV:N The SNMP agent (snmp_agent.c) in net-snmp before 5.4.1
CVE-2007-5846 /AC:L/    allows remote attackers to cause a denial of service
              Au:N/C:N/ (CPU and memory consumption) via a GETBULK request with
              I:N/A:C)  a large max-repeaters value.
                        Integer overflow in the netsnmp_create_subtree_cache
              5.0 (AV:N function in agent/snmp_agent.c in net-snmp 5.4 before
              /AC:L/, 5.3 before, and 5.2 before
CVE-2008-4309 Au:N/C:N/ allows remote attackers to cause a denial of service
              I:N/A:P)  (crash) via a crafted SNMP GETBULK request, which
                        triggers a heap-based buffer overflow, related to the
                        number of responses or repeats.
                        The netsnmp_udp_fmtaddr function (snmplib/
              5.0 (AV:N snmpUDPDomain.c) in net-snmp 5.0.9 through,
              /AC:L/    when using TCP wrappers for client authorization, does
CVE-2008-6123 Au:N/C:P/ not properly parse hosts.allow rules, which allows
              I:N/A:N)  remote attackers to bypass intended access restrictions
                        and execute SNMP queries, related to "source/
                        destination IP address confusion."
              5.0 (AV:N The AgentX subagent in Net-SNMP before 5.4.4 allows
              /AC:L/    remote attackers to cause a denial of service (hang) by
CVE-2014-2310 Au:N/C:N/ sending a multi-object request with an Object ID (OID)
              I:N/A:P)  containing more subids than previous requests, a
                        different vulnerability than CVE-2012-6151.
                        snmplib/mib.c in net-snmp 5.7.0 and earlier, when the
              5.0 (AV:N -OQ option is used, allows remote attackers to cause a
CVE-2014-3565 /AC:L/    denial of service (snmptrapd crash) via a crafted SNMP
              Au:N/C:N/ trap message, which triggers a conversion to the
              I:N/A:P)  variable type designated in the MIB file, as
                        demonstrated by a NULL type in an ifMtu trap message.
                        The snmp_pdu_parse function in snmp_api.c in net-snmp
              7.5 (AV:N 5.7.2 and earlier does not remove the varBind variable
CVE-2015-5621 /AC:L/    in a netsnmp_variable_list item when parsing of the
              Au:N/C:P/ SNMP PDU fails, which allows remote attackers to cause
              I:P/A:P)  a denial of service (crash) and possibly execute
                        arbitrary code via a crafted packet.


The following software releases have been updated to resolve these specific
issues: SBR Carrier 8.4.1R19, 8.5.0R1, and all subsequent releases.

These issues are being tracked as 1386896 .

There are no viable workarounds for these issues.
Software release Service Packages are available at http://support.juniper.net 
from the "Download Software" links.
Modification History:

2020-01-08: Initial Publication

CVSS Score:
7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Severity Level:
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

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