CVE-2018-5382

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.

References

Affected packages

Git / github.com/bcgit/bc-java

Affected ranges

Type

GIT

Repo

https://github.com/bcgit/bc-java

Events

Introduced

Last affected

4f7f299340043738ff3a269724d4a9ab18e739d2

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.49"
        }
    ]
}

Affected versions

Other

r1rv49

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5382.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "6.4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "6.4"
            }
        ]
    }
]