This update for compat-openssl098 fixes the following issues: OpenSSL Security Advisory [22 Sep 2016] (bsc#999665) Severity: High

  - OCSP Status Request extension unbounded memory growth     (CVE-2016-6304) (bsc#999666) Severity: Low

  - Pointer arithmetic undefined behaviour (CVE-2016-2177)     (bsc#982575)

  - Constant time flag not preserved in DSA signing     (CVE-2016-2178) (bsc#983249)

  - DTLS buffered message DoS (CVE-2016-2179) (bsc#994844)

  - DTLS replay protection DoS (CVE-2016-2181) (bsc#994749)

  - OOB write in BN_bn2dec() (CVE-2016-2182) (bsc#993819)

  - Birthday attack against 64-bit block ciphers (SWEET32)     (CVE-2016-2183) (bsc#995359)

  - Malformed SHA512 ticket DoS (CVE-2016-6302) (bsc#995324)

  - OOB write in MDC2_Update() (CVE-2016-6303) (bsc#995377)

  - Certificate message OOB reads (CVE-2016-6306)     (bsc#999668) More information can be found on:
    https://www.openssl.org/news/secadv/20160922.txt Bugs     fixed :

  - update expired S/MIME certs (bsc#979475)

  - fix crash in print_notice (bsc#998190)

  - resume reading from /dev/urandom when interrupted by a     signal (bsc#995075)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update from upstream with multiple security issues fixed.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - fix CVE-2016-2177 - possible integer overflow

  - fix CVE-2016-2178 - non-constant time DSA operations

  - fix CVE-2016-2179 - further DoS issues in DTLS

  - fix CVE-2016-2180 - OOB read in TS_OBJ_print_bio

  - fix CVE-2016-2181 - DTLS1 replay protection and     unprocessed records issue

  - fix CVE-2016-2182 - possible buffer overflow in     BN_bn2dec

  - fix CVE-2016-6302 - insufficient TLS session ticket HMAC     length check

  - fix CVE-2016-6304 - unbound memory growth with OCSP     status request

  - fix CVE-2016-6306 - certificate message OOB reads

  - mitigate CVE-2016-2183 - degrade all 64bit block ciphers     and RC4 to 112 bit effective strength

  - replace expired testing certificates

  - fix CVE-2016-2105 - possible overflow in base64 encoding

  - fix CVE-2016-2106 - possible overflow in     EVP_EncryptUpdate

  - fix CVE-2016-2107 - padding oracle in stitched AES-NI     CBC-MAC

  - fix CVE-2016-2108 - memory corruption in ASN.1 encoder

  - fix CVE-2016-2109 - possible DoS when reading ASN.1 data     from BIO

  - fix CVE-2016-0799 - memory issues in BIO_printf

According to its banner, the version of OpenSSL on the remote host is 1.0.1 prior to 1.0.1u, or 1.0.2 prior to 1.0.2i.  It is therefore affected by the following vulnerabilities :

 - A flaw exists in 'ssl/s3_srvr.c', 'ssl/ssl_sess.c', and 'ssl/t1_lib.c' that may under certain circumstances lead to integer overflows and allow an attacker to have an unspecified impact. (CVE-2016-2177)
 - A flaw exists in 'crypto/dsa/dsa_ossl.c' that is triggered as the DSA signing algorithm does not properly run in constant time.  This may potentially allow a context-dependent attacker to conduct e.g. a side channel attack and gain unauthorized access to DSA key information. (CVE-2016-2178)
 - A flaw exists that is due to the system not handling fragmented DTLS buffered messages correctly.  There are two scenarios where messages could result in the queue not being cleared and memory not being freed.  The first occurs when a full message is received after a fragment of the same message, and the system uses the full message while ignoring the fragmented message without removing it from queue.  The second occurs when a peer sends a 'future' message with extraneous packets containing a sequence number higher than the Finished message, resulting in the packets not being removed from queue.  With a saturation of either type of message, a remote attacker can exhaust up to 1500k of memory per connection, exhausting memory leading to a remote denial of service. (CVE-2016-2179)
 - An out-of-bounds read flaw exists in the 'TS_OBJ_print_bio()' function in 'crypto/ts/ts_lib.c'.  This may allow a context-dependent attacker to have an unspecified impact that may potentially include crashing a process linked against the library or disclosing memory contents. (CVE-2016-2180)
 - A flaw exists in the DTLS implementation that is triggered when handling epoch sequence numbers in records.  This may allow a remote attacker to cause legitimate packets to be dropped. (CVE-2016-2181)
 - An overflow condition exists in the 'BN_bn2dec()' function in 'crypto/bn/bn_print.c'.  The issue is triggered as certain input is not properly validated when handling BIGNUM values. This may allow a context-dependent attacker to cause a buffer overflow, resulting in a denial of service in a process linked against the library. (CVE-2016-2182)
 - A flaw exists in the 'tls_decrypt_ticket()' function in 'ssl/t1_lib.c' that is triggered during the handling of ticket HMAC digest.  This may allow a remote attacker to crash the service. (CVE-2016-6302)
 - An overflow condition exists in the 'MDC2_Update()' function in 'crypto/mdc2/mdc2dgst.c' that is triggered as certain input is not properly validated.  This may allow a context-dependent attacker to cause a heap-based buffer overflow, crashing a process linked against the library or potentially allowing the execution of arbitrary code. (CVE-2016-6303)
 - A flaw exists in the 'ssl_parse_clienthello_tlsext()' function in 'ssl/t1_lib.c' that is triggered when handling overly large OCSP Status Request extensions from clients.  This may allow a remote attacker to exhaust available memory in a process linked against the library. (CVE-2016-6304)
 - An out-of-bounds read flaw exists that is triggered when handling client certificate, client certificate request, and server certificate messages.  This may allow a remote attacker to potentially crash a process linked against the library. (CVE-2016-6306)

The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of- order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	Name	Product	Family	Published	Updated	Severity
93909	SUSE SLED12 / SLES12 Security Update : compat-openssl098 (SUSE-SU-2016:2468-1)	Nessus	SuSE Local Security Checks	10/7/2016	1/6/2021	critical
93978	Fedora 23 : 1:openssl (2016-97454404fe)	Nessus	Fedora Local Security Checks	10/12/2016	1/11/2021	critical
93761	OracleVM 3.3 / 3.4 : openssl (OVMSA-2016-0135)	Nessus	OracleVM Local Security Checks	9/28/2016	1/4/2021	critical
9625	OpenSSL 1.0.1 < 1.0.1u / 1.0.2 < 1.0.2i Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	10/6/2016	3/6/2019	high
503060	Siemens SCALANCE X-200RNA Switch Devices Resource Management Errors (CVE-2016-2179)	Tenable OT Security	Tenable.ot	3/13/2025	3/13/2025	high

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