CVE-2015-0285

OpenSSL 1.0.2 - Remote Brute-Force Attack via Unseeded PRNG in SSL Handshake

Title source: llm
STIX 2.1

Description

The ssl3_client_hello function in s3_clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force attack.

References (18)

Core 18
Core References
Mailing List, Third Party Advisory vendor-advisory
http://marc.info/?l=bugtraq&m=144050155601375&w=2
Mailing List, Third Party Advisory vendor-advisory
http://marc.info/?l=bugtraq&m=143748090628601&w=2
Mailing List, Third Party Advisory vendor-advisory
http://marc.info/?l=bugtraq&m=144050297101809&w=2
Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1202410
Third Party Advisory, VDB Entry vdb-entry
http://www.securitytracker.com/id/1031929
Third Party Advisory, VDB Entry vdb-entry
http://www.securityfocus.com/bid/73234
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/201503-11

Scores

EPSS 0.0881
EPSS Percentile 92.6%

Details

CWE
CWE-310
Status published
Products (1)
openssl/openssl 1.0.2 (4 CPE variants)
Published Mar 19, 2015
Tracked Since Feb 18, 2026