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

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Article ID: JSA10991 SECURITY_ADVISORIES Last Updated: 08 Jan 2020Version: 1.0
Product Affected:
These issues affect Juniper Networks SBR Carrier versions prior to 8.4.1R19.
Problem:

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 vulnerabilities.

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
CVE-2007-5846 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C) The SNMP agent (snmp_agent.c) in net-snmp before 5.4.1 allows remote attackers to cause a denial of service (CPU and memory consumption) via a GETBULK request with a large max-repeaters value.
CVE-2008-4309 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3, and 5.2 before 5.2.5.1 allows remote attackers to cause a denial of service (crash) via a crafted SNMP GETBULK request, which triggers a heap-based buffer overflow, related to the number of responses or repeats.
CVE-2008-6123 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N) The netsnmp_udp_fmtaddr function (snmplib/snmpUDPDomain.c) in net-snmp 5.0.9 through 5.4.2.1, when using TCP wrappers for client authorization, does not properly parse hosts.allow rules, which allows remote attackers to bypass intended access restrictions and execute SNMP queries, related to "source/destination IP address confusion."
CVE-2014-2310 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) The AgentX subagent in Net-SNMP before 5.4.4 allows remote attackers to cause a denial of service (hang) by sending a multi-object request with an Object ID (OID) containing more subids than previous requests, a different vulnerability than CVE-2012-6151.
CVE-2014-3565 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) snmplib/mib.c in net-snmp 5.7.0 and earlier, when the -OQ option is used, allows remote attackers to cause a denial of service (snmptrapd crash) via a crafted SNMP trap message, which triggers a conversion to the variable type designated in the MIB file, as demonstrated by a NULL type in an ifMtu trap message.
CVE-2015-5621 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P) The snmp_pdu_parse function in snmp_api.c in net-snmp 5.7.2 and earlier does not remove the varBind variable in a netsnmp_variable_list item when parsing of the SNMP PDU fails, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted packet.
Solution:

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.
 

Workaround:
There are no viable workarounds for these issues.
 
Implementation:
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:
High
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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