CVE-2018-5382
Vulnerability from cvelistv5
Published
2018-04-16 13:00
Modified
2024-09-16 16:27
Severity ?
Summary
Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions
Impacted products
Show details on NVD website


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    "cna": {
      "affected": [
        {
          "product": "Bouncy Castle",
          "vendor": "Legion of the Bouncy Castle",
          "versions": [
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      "datePublic": "2012-03-20T00:00:00",
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          "value": "The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type \"BKS-V1\" was introduced in 1.49. It should be noted that the use of \"BKS-V1\" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself."
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      "source": {
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    "dateReserved": "2018-01-12T00:00:00",
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