UBUNTU-CVE-2015-7940

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2015-7940
Downstream
USN-3727-1
Published: 09 Nov 2015, 00:00
Last modified:04 Feb 2026, 03:21

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Nov 2015, 00:00
Published
Vulnerability first disclosed
04 Feb 2026, 03:21
Last Modified
Vulnerability information updated

Description

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman (ECDH) key exchanges, aka an "invalid curve attack."

Affected Systems

  • ubuntu•bouncycastle

    < 1.49+dfsg-2ubuntu0.1

References (4)