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AUSCERT Security Bulletin
ASB-2016.0098
OpenSSL '20160926' Advisory Affects Tenable Nessus 6.8.x
26 October 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Tenable Nessus
Operating System: Windows
OS X
Linux variants
FreeBSD
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-7052 CVE-2016-6329 CVE-2016-6309
CVE-2016-6308 CVE-2016-6307 CVE-2016-6306
CVE-2016-6305 CVE-2016-6304 CVE-2016-6303
CVE-2016-6302 CVE-2016-2182 CVE-2016-2181
CVE-2016-2180 CVE-2016-2179 CVE-2016-2178
CVE-2016-2177
Member content until: Friday, November 25 2016
Reference: ESB-2016.2368
ESB-2016.2332
ESB-2016.2271
ESB-2016.2268
OVERVIEW
Multiple vulnerabilities have been identified in Tenable Nessus
prior to version 6.9. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerabilities:
"CVE-2016-6308 - OpenSSL ssl/statem/statem_dtls.c
dtls1_preprocess_fragment() Function DTLS Message Handling Memory
Exhaustion Remote DoS
CVE-2016-6305 - OpenSSL ssl/record/rec_layer_s3.c SSL_peek()
Function Empty Record Handling Remote DoS
CVE-2016-6304 - OpenSSL ssl/t1_lib.c ssl_parse_clienthello_tlsext()
Function OCSP Status Request Extension Handling Memory Exhaustion
Remote DoS
CVE-2016-6306 - OpenSSL Certificate Message Handling Limited
Out-of-bounds Read DoS Weakness
CVE-2016-6307 - OpenSSL ssl/statem/statem_lib.c
tls_get_message_header() Function Memory Exhaustion Remote DoS
CVE-2016-6303 - OpenSSL crypto/mdc2/mdc2dgst.c MDC2_Update()
Function Buffer Overflow Weakness
CVE-2016-6329 - Triple Data Encryption Algorithm (3DES) 64-bit Block
Size Birthday Attack HTTPS Cookie MitM Disclosure (SWEET32)
CVE-2016-6302 - OpenSSL ssl/t1_lib.c tls_decrypt_ticket() Function
Ticket HMAC Digest Handling Remote DoS
CVE-2016-2179 - OpenSSL DTLS Buffered Message Saturation Queue
Exhaustion Remote DoS
CVE-2016-2181 - OpenSSL DTLS Implementation Record Epoch Sequence
Number Handling Remote DoS
CVE-2016-2182 - OpenSSL crypto/bn/bn_print.c BN_bn2dec() Function
BIGNUM Handling Buffer Overflow DoS
CVE-2016-2180 - OpenSSL crypto/ts/ts_lib.c TS_OBJ_print_bio()
Function Out-of-bounds Read Issue
CVE-2016-2178 - OpenSSL crypto/dsa/dsa_ossl.c DSA Signing Algorithm
Constant Time Failure Side-channel Attack Information Disclosure
CVE-2016-2177 - OpenSSL Integer Overflow Unspecified Weakness
CVE-2016-6309 - OpenSSL ssl/statem/statem.c read_state_machine()
Function Message Handling Use-after-free Remote Code Execution
CVE-2016-7052 - OpenSSL CRL Handling Unspecified NULL Pointer
Dereference DoS"[1]
MITIGATION
Tenable advises users should upgrade to the latest version of Nessus
to address these issues. [1]
REFERENCES
[1] OpenSSL '20160926' Advisory Affects Tenable Nessus
http://www.tenable.com/security/tns-2016-16
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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