CVE-2015-7940
Published: 09 November 2015
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."
Priority
Low
Status
| Package | Release | Status |
|---|---|---|
|
bouncycastle Launchpad, Ubuntu, Debian |
Upstream |
Released
(1.51-1)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Not vulnerable
(1.59-1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(1.51-4ubuntu1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was released [1.49+dfsg-2ubuntu0.1])
|
|
|
Patches: Upstream: https://github.com/bcgit/bc-java/commit/5cb2f0578e6ec8f0d67e59d05d8c4704d8e05f83 Upstream: https://github.com/bcgit/bc-java/commit/e25e94a046a6934819133886439984e2fecb2b04 |
||
Notes
| Author | Note |
|---|---|
| mdeslaur | no reverse depends in main |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7940
- https://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html
- https://ubuntu.com/security/notices/USN-3727-1
- NVD
- Launchpad
- Debian