Summary
It was discovered that Bouncy Castle incorrectly handled certain crypto
algorithms. A remote attacker could possibly use these issues to obtain
sensitive information, including private keys.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 14.04 LTS 14.04:LTS | bouncycastle | 1.49+dfsg-2ubuntu0.1 |
Vulnerabilities 9
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High 7.5
In Bouncy Castle JCE Provider it is possible to inject extra elements in the sequence making up the signature and still have it validate
In Bouncy Castle JCE Provider version 1.55 and earlier the 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…
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High 7.5
In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification
In the Bouncy Castle JCE Provider version 1.55 and earlier 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 cas…
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High 7.5
In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values
In the Bouncy Castle JCE Provider version 1.55 and earlier 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 priva…
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Medium 5.9
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain…
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Medium 5.9
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier the DHIES/ECIES CBC mode vulnerable to padding oracle attack. For BC 1.55 and older, in an environment where timings can be easily observed, it is possible with enough observations to identify when th…
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Medium 5.3
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
In the Bouncy Castle JCE Provider version 1.55 and earlier 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 tabl…
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Low 3.7
In Bouncy Castle JCE Provider the other party DH public key is not fully validated
In the Bouncy Castle JCE Provider version 1.55 and earlier 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 …
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Unscored —
Bouncy Castle in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to obtain sensitive information…
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Medium —
Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15
The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman (ECDH) key exchanges, aka an "invalid c…
References
-
report
https://ubuntu.com/security/CVE-2015-6644
-
report
https://ubuntu.com/security/CVE-2015-7940
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report
https://ubuntu.com/security/CVE-2016-1000338
-
report
https://ubuntu.com/security/CVE-2016-1000339
-
report
https://ubuntu.com/security/CVE-2016-1000341
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report
https://ubuntu.com/security/CVE-2016-1000342
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report
https://ubuntu.com/security/CVE-2016-1000343
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report
https://ubuntu.com/security/CVE-2016-1000345
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report
https://ubuntu.com/security/CVE-2016-1000346