Buffer overflow in OpenSSL

1) Buffer overflow

EUVDB-ID: #VU70414

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-0292

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a boundary error in the EVP_DecodeUpdate function in crypto/evp/encode.c in the base64-decoding implementation. A remote attacker can trigger memory corruption and perform a denial of service (DoS) attack or possibly have unspecified other impact.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenSSL: 0.9.8 - 1.0.1g

External links

http://www.openssl.org/news/secadv_20150319.txt
http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=d0666f289ac013094bbbf547bfbcd616199b7d2d
http://rt.openssl.org/Ticket/Display.html?id=2608&user=guest&pass=guest
http://bugzilla.redhat.com/show_bug.cgi?id=1202395
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152844.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152733.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152734.html
http://www.debian.org/security/2015/dsa-3197
http://www.ubuntu.com/usn/USN-2537-1
http://www.securitytracker.com/id/1031929
http://rhn.redhat.com/errata/RHSA-2015-0716.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://rhn.redhat.com/errata/RHSA-2015-0752.html
http://rhn.redhat.com/errata/RHSA-2015-0715.html
http://rhn.redhat.com/errata/RHSA-2015-0800.html
http://access.redhat.com/articles/1384453
http://www.securityfocus.com/bid/73228
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
http://bto.bluecoat.com/security-advisory/sa92
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://marc.info/?l=bugtraq&m=144050297101809&w=2
http://marc.info/?l=bugtraq&m=143213830203296&w=2
http://marc.info/?l=bugtraq&m=143748090628601&w=2
http://marc.info/?l=bugtraq&m=144050155601375&w=2
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015
http://security.gentoo.org/glsa/201503-11
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10680
http://kc.mcafee.com/corporate/index?page=content&id=SB10110
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://support.citrix.com/article/CTX216642

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.