#VU70415 Input validation error in OpenSSL - CVE-2015-0293

Vulnerability identifier: #VU70415

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-0293

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the SSLv2 implementation. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenSSL: 0.9.8ze - 0.9.8p, 1.0.0g - 1.0.0p, 1.0.2

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1202404
https://www.openssl.org/news/secadv_20150319.txt
https://git.openssl.org/?p=openssl.git;a=commit;h=86f8fb0e344d62454f8daf3e15236b2b59210756
https://lists.fedoraproject.org/pipermail/package-announce/2015-March/152844.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-March/152733.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-March/152734.html
https://lists.opensuse.org/opensuse-updates/2015-03/msg00062.html
https://www.freebsd.org/security/advisories/FreeBSD-SA-15%3A06.openssl.asc
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00022.html
https://www.ubuntu.com/usn/USN-2537-1
https://www.securitytracker.com/id/1031929
https://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
https://rhn.redhat.com/errata/RHSA-2015-0716.html
https://www.mandriva.com/security/advisories?name=MDVSA-2015:063
https://www.mandriva.com/security/advisories?name=MDVSA-2015:062
https://rhn.redhat.com/errata/RHSA-2015-0752.html
https://rhn.redhat.com/errata/RHSA-2015-0715.html
https://rhn.redhat.com/errata/RHSA-2015-0800.html
https://access.redhat.com/articles/1384453
https://lists.fedoraproject.org/pipermail/package-announce/2015-May/156823.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-May/157177.html
https://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
https://support.apple.com/kb/HT204942
https://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
https://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
https://bto.bluecoat.com/security-advisory/sa92
https://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
https://marc.info/?l=bugtraq&m=144050297101809&w=2
https://marc.info/?l=bugtraq&m=143213830203296&w=2
https://marc.info/?l=bugtraq&m=143748090628601&w=2
https://marc.info/?l=bugtraq&m=144050155601375&w=2
https://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
https://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
https://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
https://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html
https://security.gentoo.org/glsa/201503-11
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10680
https://kc.mcafee.com/corporate/index?page=content&id=SB10110
https://www.securityfocus.com/bid/73232
https://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://support.citrix.com/article/CTX216642
https://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.