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CVE-2017-13098

BouncyCastle JCE TLS Bleichenbacher/ROBOT

HIGH
7.5
CVSS Score
Published: December 13, 2017 at 01:00 AM UTC
Updated: June 17, 2026 at 01:04 AM UTC
2 products affected across 2 vendorsBc JavaBC Java

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Severity
HIGH7.5
Exploit prediction
EPSS 24%

Description

BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable application. This vulnerability is referred to as "ROBOT."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Bc Java· Bouncycastle
95%
v < 1.59
Affected range stops below 1.59, so it looks safe — our inference, not a vendor statement
BC Java· Legion of Bouncy Castlemaven
60%
v < 1.0.3
Affected range stops below 1.0.3, so it looks safe — our inference, not a vendor statement

References (8)

Vendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00011.html
Third Party Advisoryx_refsource_CERT-VNIssue TrackingMitigationUS Government Resource
Source: [email protected]
http://www.kb.cert.org/vuls/id/144389
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/102195
x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://github.com/bcgit/bc-java/commit/a00b684465b38d722ca9a3543b8af8568e6bad5c
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://robotattack.org/
x_refsource_CONFIRMIssue TrackingThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20171222-0001/
Vendor Advisoryx_refsource_DEBIANIssue TrackingThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2017/dsa-4072
x_refsource_MISC
Source: [email protected]
https://www.oracle.com/security-alerts/cpuoct2020.html

CVSS

7.5HIGHcertcc
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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