CVE-2015-0285

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 6.12% Top 10%
Vendor Advisory marc.info Vendor Advisory marc.info Vendor Advisory marc.info Vendor Advisory gentoo.org Vendor Advisory openssl.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://kc.mcafee.com/corporate/index?page=content&id=SB10110 third party advisory
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html third party advisory
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=e1b568dd2462f7cacf98f3d117936c34e2849a6b
http://marc.info/?l=bugtraq&m=144050155601375&w=2 mailing list third party advisory vendor advisory
https://bto.bluecoat.com/security-advisory/sa92 third party advisory
https://www.openssl.org/news/secadv_20150319.txt vendor advisory
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html third party advisory
http://marc.info/?l=bugtraq&m=143748090628601&w=2 mailing list third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1202410 issue tracking third party advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html third party advisory patch
http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015 third party advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html third party advisory
http://marc.info/?l=bugtraq&m=144050297101809&w=2 mailing list third party advisory vendor advisory
http://www.securitytracker.com/id/1031929 vdb entry third party advisory
http://www.securityfocus.com/bid/73234 vdb entry third party advisory
https://security.gentoo.org/glsa/201503-11 third party advisory vendor advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Frequently Asked Questions

What is the severity of CVE-2015-0285?
CVE-2015-0285 has been scored as a medium severity vulnerability.
How to fix CVE-2015-0285?
To fix CVE-2015-0285, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-0285 being actively exploited in the wild?
It is possible that CVE-2015-0285 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~6% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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