Test ID:	1.3.6.1.4.1.25623.1.0.891418
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-1418-1)
Summary:	The remote host is missing an update for the Debian 'bouncycastle' package(s) announced via the DLA-1418-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'bouncycastle' package(s) announced via the DLA-1418-1 advisory. Vulnerability Insight: Several security vulnerabilities were found in Bouncy Castle, a Java implementation of cryptographic algorithms. CVE-2016-1000338 DSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of invisible data into a signed structure. CVE-2016-1000339 Previously the primary engine class used for AES was AESFastEngine. Due to the highly table driven approach used in the algorithm it turns out that if the data channel on the CPU can be monitored the lookup table accesses are sufficient to leak information on the AES key being used. There was also a leak in AESEngine although it was substantially less. AESEngine has been modified to remove any signs of leakage and is now the primary AES class for the BC JCE provider. Use of AESFastEngine is now only recommended where otherwise deemed appropriate. CVE-2016-1000341 DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding may allow an attacker to gain information about the signature's k value and ultimately the private value as well. CVE-2016-1000342 ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of invisible data into a signed structure. CVE-2016-1000343 The DSA key pair generator generates a weak private key if used with default values. If the JCA key pair generator is not explicitly initialised with DSA parameters, 1.55 and earlier generates a private value assuming a 1024 bit key size. In earlier releases this can be dealt with by explicitly passing parameters to the key pair generator. CVE-2016-1000345 The DHIES/ECIES CBC mode is vulnerable to padding oracle attack. In an environment where timings can be easily observed, it is possible with enough observations to identify when the decryption is failing due to padding. CVE-2016-1000346 In the Bouncy Castle JCE Provider the other party DH public key is not fully validated. This can cause issues as invalid keys can be used to reveal details about the other party's private key where static Diffie-Hellman is in use. As of this release the key parameters are checked on agreement calculation. For Debian 8 Jessie, these problems have been fixed in version 1.49+dfsg-3+deb8u3. We recommend that you upgrade your bouncycastle packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'bouncycastle' package(s) on Debian 8. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-1000338 https://github.com/bcgit/bc-java/commit/b0c3ce99d43d73a096268831d0d120ffc89eac7f#diff-3679f5a9d2b939d0d3ee1601a7774fb0 https://www.oracle.com/security-alerts/cpuoct2020.html https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E RedHat Security Advisories: RHSA-2018:2669 https://access.redhat.com/errata/RHSA-2018:2669 RedHat Security Advisories: RHSA-2018:2927 https://access.redhat.com/errata/RHSA-2018:2927 https://usn.ubuntu.com/3727-1/ Common Vulnerability Exposure (CVE) ID: CVE-2016-1000339 https://github.com/bcgit/bc-java/commit/413b42f4d770456508585c830cfcde95f9b0e93b#diff-54656f860db94b867ba7542430cd2ef0 https://github.com/bcgit/bc-java/commit/8a73f08931450c17c749af067b6a8185abdfd2c0#diff-494fb066bed02aeb76b6c005632943f2 https://security.netapp.com/advisory/ntap-20181127-0004/ Common Vulnerability Exposure (CVE) ID: CVE-2016-1000341 https://github.com/bcgit/bc-java/commit/acaac81f96fec91ab45bd0412beaf9c3acd8defa#diff-e75226a9ca49217a7276b29242ec59ce Common Vulnerability Exposure (CVE) ID: CVE-2016-1000342 https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9 Common Vulnerability Exposure (CVE) ID: CVE-2016-1000343 https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7d Common Vulnerability Exposure (CVE) ID: CVE-2016-1000345 https://github.com/bcgit/bc-java/commit/21dcb3d9744c83dcf2ff8fcee06dbca7bfa4ef35#diff-4439ce586bf9a13bfec05c0d113b8098 Common Vulnerability Exposure (CVE) ID: CVE-2016-1000346 https://github.com/bcgit/bc-java/commit/1127131c89021612c6eefa26dbe5714c194e7495#diff-d525a20b8acaed791ae2f0f770eb5937
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