Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.3%
CVSS Severity
CVSS v3 Score 4.4
CVSS v2 Score 3.6
References
- http://www.securityfocus.com/bid/103453
- https://access.redhat.com/errata/RHSA-2018:2927
- https://www.bouncycastle.org/releasenotes.html
- https://www.kb.cert.org/vuls/id/306792
- https://www.oracle.com/security-alerts/cpuoct2020.html
- http://www.securityfocus.com/bid/103453
- https://access.redhat.com/errata/RHSA-2018:2927
- https://www.bouncycastle.org/releasenotes.html
- https://www.kb.cert.org/vuls/id/306792
- https://www.oracle.com/security-alerts/cpuoct2020.html
Products affected by CVE-2018-5382
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cpe:2.3:a:bouncycastle:bc-java:-
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cpe:2.3:a:bouncycastle:bc-java:1.01
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cpe:2.3:a:bouncycastle:bc-java:1.02
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cpe:2.3:a:bouncycastle:bc-java:1.03
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cpe:2.3:a:bouncycastle:bc-java:1.04
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cpe:2.3:a:bouncycastle:bc-java:1.05
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cpe:2.3:a:bouncycastle:bc-java:1.06
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cpe:2.3:a:bouncycastle:bc-java:1.07
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cpe:2.3:a:bouncycastle:bc-java:1.08
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cpe:2.3:a:bouncycastle:bc-java:1.09
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cpe:2.3:a:bouncycastle:bc-java:1.10
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cpe:2.3:a:bouncycastle:bc-java:1.11
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cpe:2.3:a:bouncycastle:bc-java:1.12
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cpe:2.3:a:bouncycastle:bc-java:1.13
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cpe:2.3:a:bouncycastle:bc-java:1.14
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cpe:2.3:a:bouncycastle:bc-java:1.15
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cpe:2.3:a:bouncycastle:bc-java:1.16
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cpe:2.3:a:bouncycastle:bc-java:1.17
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cpe:2.3:a:bouncycastle:bc-java:1.18
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cpe:2.3:a:bouncycastle:bc-java:1.19
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cpe:2.3:a:bouncycastle:bc-java:1.20
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cpe:2.3:a:bouncycastle:bc-java:1.21
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cpe:2.3:a:bouncycastle:bc-java:1.22
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cpe:2.3:a:bouncycastle:bc-java:1.23
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cpe:2.3:a:bouncycastle:bc-java:1.24
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cpe:2.3:a:bouncycastle:bc-java:1.25
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cpe:2.3:a:bouncycastle:bc-java:1.26
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cpe:2.3:a:bouncycastle:bc-java:1.27
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cpe:2.3:a:bouncycastle:bc-java:1.28
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cpe:2.3:a:bouncycastle:bc-java:1.29
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cpe:2.3:a:bouncycastle:bc-java:1.30
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cpe:2.3:a:bouncycastle:bc-java:1.31
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cpe:2.3:a:bouncycastle:bc-java:1.32
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cpe:2.3:a:bouncycastle:bc-java:1.33
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cpe:2.3:a:bouncycastle:bc-java:1.34
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cpe:2.3:a:bouncycastle:bc-java:1.35
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cpe:2.3:a:bouncycastle:bc-java:1.36
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cpe:2.3:a:bouncycastle:bc-java:1.37
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cpe:2.3:a:bouncycastle:bc-java:1.38
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cpe:2.3:a:bouncycastle:bc-java:1.39
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cpe:2.3:a:bouncycastle:bc-java:1.40
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cpe:2.3:a:bouncycastle:bc-java:1.41
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cpe:2.3:a:bouncycastle:bc-java:1.42
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cpe:2.3:a:bouncycastle:bc-java:1.43
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cpe:2.3:a:bouncycastle:bc-java:1.44
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cpe:2.3:a:bouncycastle:bc-java:1.45
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cpe:2.3:a:bouncycastle:bc-java:1.46
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cpe:2.3:a:bouncycastle:bc-java:1.47
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cpe:2.3:a:bouncycastle:bc-java:1.48
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cpe:2.3:a:bouncycastle:bc-java:1.49
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cpe:2.3:a:redhat:satellite:6.4
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cpe:2.3:a:redhat:satellite_capsule:6.4