The Oracle VM VirtualBox application installed on the remote host is a version prior to 5.0.22. It is, therefore, affected by multiple vulnerabilities in the bundled OpenSSL component :

  - A heap buffer overflow condition exists in the     EVP_EncodeUpdate() function within file     crypto/evp/encode.c that is triggered when handling     a large amount of input data. An unauthenticated, remote     attacker can exploit this to cause a denial of service     condition. (CVE-2016-2105)

  - A heap buffer overflow condition exists in the     EVP_EncryptUpdate() function within file     crypto/evp/evp_enc.c that is triggered when handling a     large amount of input data after a previous call occurs     to the same function with a partial block. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition. (CVE-2016-2106)

  - Flaws exist in the aesni_cbc_hmac_sha1_cipher()     function in file crypto/evp/e_aes_cbc_hmac_sha1.c and     the aesni_cbc_hmac_sha256_cipher() function in file     crypto/evp/e_aes_cbc_hmac_sha256.c that are triggered     when the connection uses an AES-CBC cipher and AES-NI     is supported by the server. A man-in-the-middle attacker     can exploit these to conduct a padding oracle attack,     resulting in the ability to decrypt the network traffic.
    (CVE-2016-2107)

  - Multiple unspecified flaws exist in the d2i BIO     functions when reading ASN.1 data from a BIO due to     invalid encoding causing a large allocation of memory.
    An unauthenticated, remote attacker can exploit these to     cause a denial of service condition through resource     exhaustion. (CVE-2016-2109)

  - An out-of-bounds read error exists in the     X509_NAME_oneline() function within file     crypto/x509/x509_obj.c when handling very long ASN1     strings. An unauthenticated, remote attacker can exploit     this to disclose the contents of stack memory.
    (CVE-2016-2176)

The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1 BIO implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (memory consumption) via a short invalid encoding. (CVE-2016-2109)

According to the versions of the openssl098e package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An integer overflow flaw, leading to a buffer overflow,     was found in the way the EVP_EncryptUpdate() function     of OpenSSL parsed very large amounts of input data. A     remote attacker could use this flaw to crash an     application using OpenSSL or, possibly, execute     arbitrary code with the permissions of the user running     that application.(CVE-2016-2106)

  - A denial of service flaw was found in the way OpenSSL     parsed certain ASN.1-encoded data from BIO (OpenSSL's     I/O abstraction) inputs. An application using OpenSSL     that accepts untrusted ASN.1 BIO input could be forced     to allocate an excessive amount of data.(CVE-2016-2109)

  - The X509_cmp_time function in crypto/x509/x509_vfy.c in     OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1     before 1.0.1n, and 1.0.2 before 1.0.2b allows remote     attackers to cause a denial of service (out-of-bounds     read and application crash) via a crafted length field     in ASN1_TIME data, as demonstrated by an attack against     a server that supports client authentication with a     custom verification callback.(CVE-2015-1789)

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

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-3558 advisory.

  - The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g     improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow     and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a     large amount of ASN.1 data, a different vulnerability than CVE-2016-2842. (CVE-2016-0799)

  - Integer overflow in the EVP_EncodeUpdate function in crypto/evp/encode.c in OpenSSL before 1.0.1t and     1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a     large amount of binary data. (CVE-2016-2105)

  - The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory     allocation during a certain padding check, which allows remote attackers to obtain sensitive cleartext     information via a padding-oracle attack against an AES CBC session. NOTE: this vulnerability exists     because of an incorrect fix for CVE-2013-0169. (CVE-2016-2107)

  - The doapr_outch function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g     does not verify that a certain memory allocation succeeds, which allows remote attackers to cause a denial     of service (out-of-bounds write or memory consumption) or possibly have unspecified other impact via a     long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than     CVE-2016-0799. (CVE-2016-2842)

  - Integer overflow in the EVP_EncryptUpdate function in crypto/evp/evp_enc.c in OpenSSL before 1.0.1t and     1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a     large amount of data. (CVE-2016-2106)

  - The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to     execute arbitrary code or cause a denial of service (buffer underflow and memory corruption) via an ANY     field in crafted serialized data, aka the negative zero issue. (CVE-2016-2108)

  - The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1 BIO implementation in OpenSSL before     1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (memory consumption)     via a short invalid encoding. (CVE-2016-2109)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 4 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - openssl: Memory corruption in the ASN.1 encoder (CVE-2016-2108)

  - Integer overflow in the EVP_EncodeUpdate function in crypto/evp/encode.c in OpenSSL before 1.0.1t and     1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a     large amount of binary data. (CVE-2016-2105)

  - Integer overflow in the EVP_EncryptUpdate function in crypto/evp/evp_enc.c in OpenSSL before 1.0.1t and     1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a     large amount of data. (CVE-2016-2106)

  - The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1 BIO implementation in OpenSSL before     1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (memory consumption)     via a short invalid encoding. (CVE-2016-2109)

  - The certificate parser in OpenSSL before 1.0.1u and 1.0.2 before 1.0.2i might allow remote attackers to     cause a denial of service (out-of-bounds read) via crafted certificate operations, related to s3_clnt.c     and s3_srvr.c. (CVE-2016-6306)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

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

 - A flaw exists in 'crypto/asn1/a_d2i_fp.c', which is triggered during the handling of large length fields in ASN.1 BIO. This may allow a remote attacker to exhaust memory resources, potentially crashing a process linked against the library.
 - A flaw exists in the 'aesni_cbc_hmac_sha1_cipher()' function in 'crypto/evp/e_aes_cbc_hmac_sha1.c' and 'aesni_cbc_hmac_sha256_cipher()' function in 'crypto/evp/e_aes_cbc_hmac_sha256.c'. The issue is triggered when a connection uses an AES CBC cipher and AES-NI is supported by the server. This may allow a MitM (Man-in-the-Middle) attacker to conduct a padding oracle attack to potentially decrypt traffic.
 - A flaw in the 'X509_NAME_oneline()' function in 'crypto/x509/x509_obj.c' that is triggered when handling overly long ASN1 strings. This may allow a remote attacker to potentially disclose arbitrary stack memory contents.
 - An overflow condition in the 'EVP_EncryptUpdate()' function in 'crypto/evp/evp_enc.c' is triggered when handling a large amount of input data after a previous call to the same function with a partial block. This may allow a context-dependent attacker to cause a heap-based buffer overflow, crashing a process linked against the library or potentially resulting in the execution of arbitrary code.
 - An overflow condition in the 'EVP_EncodeUpdate()' function in 'crypto/evp/encode.c' is triggered when handling a large amount of input data. This may allow a context-dependent attacker to cause a heap-based buffer overflow, crashing a process linked against the library or potentially resulting in the execution of arbitrary code.

ID	Name	Product	Family	Published	Updated	Severity
92458	Oracle VM VirtualBox < 5.0.22 Multiple Vulnerabilities (July 2016 CPU)	Nessus	Misc.	7/20/2016	11/19/2019	high
94984	F5 Networks BIG-IP : OpenSSL vulnerability (K23230229)	Nessus	F5 Networks Local Security Checks	11/21/2016	1/4/2019	high
130733	EulerOS 2.0 SP3 : openssl098e (EulerOS-SA-2019-2271)	Nessus	Huawei Local Security Checks	11/8/2019	4/12/2024	high
181033	Oracle Linux 6 : openssl (ELSA-2016-3558)	Nessus	Oracle Linux Local Security Checks	9/7/2023	9/7/2023	critical
195588	RHEL 4 : openssl (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	5/11/2024	5/11/2024	critical
195555	RHEL 7 : openssl (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	5/11/2024	5/11/2024	critical
9390	OpenSSL 1.0.1 < 1.0.1t / 1.0.2 < 1.0.2h Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	7/8/2016	3/6/2019	high

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