During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-1449-1 | openssl security update |
Debian DSA |
DSA-4348-1 | openssl security update |
Debian DSA |
DSA-4355-1 | openssl1.0 security update |
Ubuntu USN |
USN-3692-1 | OpenSSL vulnerabilities |
Ubuntu USN |
USN-3692-2 | OpenSSL vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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epss
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Status: PUBLISHED
Assigner: openssl
Published:
Updated: 2024-09-17T02:11:18.325Z
Reserved: 2017-11-30T00:00:00
Link: CVE-2018-0732
No data.
Status : Modified
Published: 2018-06-12T13:29:00.207
Modified: 2024-11-21T03:38:49.630
Link: CVE-2018-0732
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
Ubuntu USN