#VU70417 Resource management error in OpenSSL - CVE-2015-1788
Vulnerability identifier: #VU70417
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:
CWE-ID:
CWE-399
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 improper management of internal resources within the application in the BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
OpenSSL: 0.9.8r - 0.9.8p, 1.0.0k - 1.0.0, 1.0.1g - 1.0.1, 1.0.2a - 1.0.2
External links
https://github.com/openssl/openssl/commit/4924b37ee01f71ae19c94a8934b80eeb2f677932
https://www.openssl.org/news/secadv_20150611.txt
https://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
https://support.apple.com/kb/HT205031
https://marc.info/?l=bugtraq&m=143880121627664&w=2
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
https://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
https://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05131044
https://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
https://www.securityfocus.com/bid/91787
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763
https://marc.info/?l=bugtraq&m=144050155601375&w=2
https://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
https://www.securityfocus.com/bid/75158
https://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
https://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
https://openssl.org/news/secadv/20150611.txt
https://fortiguard.com/advisory/openssl-vulnerabilities-june-2015
https://www.fortiguard.com/advisory/openssl-vulnerabilities-june-2015
https://www-304.ibm.com/support/docview.wss?uid=swg21960041
https://bto.bluecoat.com/security-advisory/sa98
https://www.fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015
https://security.gentoo.org/glsa/201506-02
https://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html
https://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
https://kc.mcafee.com/corporate/index?page=content&id=SB10122
https://lists.opensuse.org/opensuse-security-announce/2015-07/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
https://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html
https://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html
https://www.ubuntu.com/usn/USN-2639-1
https://www.securitytracker.com/id/1032564
https://www.debian.org/security/2015/dsa-3287
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl
https://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://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.
