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
References
cret@cert.orghttp://www.securityfocus.com/bid/103453Third Party Advisory, VDB Entry
cret@cert.orghttps://access.redhat.com/errata/RHSA-2018:2927Third Party Advisory
cret@cert.orghttps://www.bouncycastle.org/releasenotes.htmlRelease Notes, Vendor Advisory
cret@cert.orghttps://www.kb.cert.org/vuls/id/306792Third Party Advisory, US Government Resource
cret@cert.orghttps://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
Impacted products
Legion of the Bouncy CastleBouncy Castle
Show details on NVD website

To clipboard 

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    "cna": {
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          "vendor": "Legion of the Bouncy Castle",
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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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