CVE-2015-0285
UnknownEPSS 5.79%
Last modified
CVE-2015-0285 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 5.79% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | 1.0.2 |
References
- http://marc.info/?l=bugtraq&m=143748090628601&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050297101809&w=2Mailing List, Third Party Advisory
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73234Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1031929Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa92Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1202410Issue Tracking, Third Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110Third Party Advisory
- https://security.gentoo.org/glsa/201503-11Third Party Advisory
- https://www.openssl.org/news/secadv_20150319.txtVendor Advisory
- http://marc.info/?l=bugtraq&m=143748090628601&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144050297101809&w=2Mailing List, Third Party Advisory
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlThird Party Advisory
- http://www.securityfocus.com/bid/73234Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1031929Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa92Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1202410Issue Tracking, Third Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110Third Party Advisory
- https://security.gentoo.org/glsa/201503-11Third Party Advisory
- https://www.openssl.org/news/secadv_20150319.txtVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-0285?
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.
How severe is CVE-2015-0285?
Severity scoring for CVE-2015-0285 is pending analysis. The EPSS model estimates a 5.79% probability of exploitation in the next 30 days.
How do I fix CVE-2015-0285?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2015-0285?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST