CVE-2015-0285
openssl: handshake with unseeded PRNG
Severity
LowRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · March 19, 2015
Updated · August 5, 2026
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.
Statement
This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 5, 6, and 7.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 2.6AV:N/AC:H/Au:N/C:P/I:N/A:N
CWE-335 · Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)