CVE-2018-5382

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Summary

CVECVE-2018-5382
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-04-16 14:29:00 UTC
Updated2022-04-20 15:31:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-354

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bouncycastle Legion-of-the-bouncy-castle-java-crytography-api All All All All
Application Bouncycastle Legion-of-the-bouncy-castle-java-crytography-api All All All All
Application Bouncycastle Legion-of-the-bouncy-castle-java-crytography-api All All All All
Application Redhat Satellite 6.4 All All All
Application Redhat Satellite Capsule 6.4 All All All

References

ReferenceSourceLinkTags
VU#306792 - Bouncy Castle BKS-V1 keystore files vulnerable to trivial hash collisions CERT-VN www.kb.cert.org Third Party Advisory, US Government Resource
Red Hat Customer Portal REDHAT access.redhat.com
Oracle Critical Patch Update Advisory - October 2020 MISC www.oracle.com
bouncycastle.org MISC www.bouncycastle.org Vendor Advisory
Bouncy Castle BKS-V1 CVE-2018-5382 Security Weakness BID www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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