Security Finder

You can use the Security Finder to search for security issues and their impact on Riverbed products. This page is continuously updated, displaying the most current public security issues first. The search box can be used to look up records by specific CVE numbers or relevant search word, e.g. Apache, 8.5.0, Workaround. For additional search tips, refer to article S16165. Security issues listed here are categorized into three groups: fixed, workaround recommended and not applicable.

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For search tips, read article S16165.

OpenSSL Security Advisory May 3, 2016 (Bug #258529)

Products:

SteelHead (Appliance), SteelCentral Controller for SteelHead (Central Management Console)

Fixed in Version:

steelhead 9.1.3, cmc 9.1.1, cmc 9.2.1, steelhead 9.2.1, steelhead 9.5.0, cmc 9.5.0

Last Modified:

2017-03-14

Summary

Details:

From https://www.openssl.org/news/secadv/20160503.txt:

CVE-2016-2107: Padding oracle in AES-NI CBC MAC check (high)

A man-in-the-middle attacker can use a padding oracle attack to decrypt traffic when the connection uses an AES CBC cipher and the server supports AES-NI (AES hardware support). Some Riverbed appliance hardware does support AES-NI.

CVE-2016-2105: EVP_EncodeUpdate overflow (low)

CVE-2016-2106: EVP_EncryptUpdate overflow (low)
This function is used by the optimization service in SteelHead.

CVE-2016-2109: ASN.1 BIO excessive memory allocation (low)

CVE-2016-2176: EBCDIC overread (low)
Not vulnerable, since the system does not use EBCDIC.

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

Fixed in previous releases: SteelHead 8.6.3, 9.0.1d, 9.1.1, 9.2.0; Interceptor 4.5.3, 5.5.0; SCC 9.1.0e, 9.2.0, SteelFusion 4.2.0, 4.3.0.

For releases that do not have this fix, configure the following to mitigate CVE-2016-2107:

- For "ssh server allowed-ciphers," do not include aes128-cbc, aes192-cbc, or aes256-cbc (these are not enabled by default).

- For "web ssl cipher," the default is "HIGH:-aNULL:-kKRB5:-MD5." To remove the AES CBC ciphers, use "HIGH:-aNULL:-kKRB5:-MD5:-PSK-AES128-CBC-SHA:-PSK-AES256-CBC-SHA." Note: If you have a different cipher string, there may be other AES CBC ciphers that need to be disabled as well.

Fix:

Upgraded OpenSSL to 1.0.2h (for SteelHead 9.2.1, 9.3.0; Interceptor 5.5.1; SCC 9.2.1, SteelFusion 4.4.0) or 1.0.1t (for SteelHead 9.1.3; Interceptor 5.1.0; SCC 9.1.1).

Recommendation:

Upgrade to a release with the fix.

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