CVE-2017-13098
bouncycastle - security update
5.9
MEDIUM
CVSS 3.1
EPSS 68.1%
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."
How to fix CVE-2017-13098
To remediate CVE-2017-13098, upgrade the affected package to a fixed version below.
- —upgrade to 1.58-1 or later
- —upgrade to 1.56-1+deb9u1 or later
- —upgrade to 1.0.3 or later
Is CVE-2017-13098 being exploited?
Likely — EPSS is 68.1%, placing CVE-2017-13098 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1.58-1
- from 0, < 1.56-1+deb9u1
- from 0, < 1.0.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |