Security Bulletin
Summary
OpenSSLの脆弱性はOpenSSL Projectによって2015年12月3日に開示されました。 OpenSSLは、IBM WebSphere MQ Advanced Message Security for IBM iプラットフォームで使用されます。IBM MQ は、該当のCVEに対処しました。
Vulnerability Details
脆弱性の詳細：
CVEID: CVE-2015-3194
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference when verifying certificates through a malformed routine. An attacker could exploit this vulnerability using signature verification routines with an absent PSS parameter to cause any certificate verification operation to fail.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108503 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2015-3195
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could exploit this vulnerability to obtain CMS data and other sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108504 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2015-3196
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a race condition when PSK identity hints are received by a multi-threaded client and the SSL_CTX structure is updated with the incorrect value. An attacker could exploit this vulnerability to possibly corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108505 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
影響のある製品・バージョン：
次の製品に影響があります。
IBM MQ 8.0 Advanced Message Security (AMS) on IBM i のみ
Fix Pack 8.0.0.4 およびそれ以前の保守レベル
Workarounds and Mitigations
回避策/軽減策：
なし
Get Notified about Future Security Bulletins
References
この文書は、米国 IBM 社の資料を翻訳した参考文書です。翻訳元の文書は、以下のリンクよりご参照ください。
Security Bulletin: Vulnerabilities in OpenSSL affect IBM MQ AMS (CVE-2015-3194, CVE-2015-3195, CVE-2015-3196)
公開済みのフィックスパックについては、以下のサイトよりご利用いただけます。
Recommended fixes for WebSphere MQ
フィックス・パックの公開予定については、以下のサイトよりご確認いただけます。
WebSphere MQ planned maintenance release dates
[CVSS情報]
独立行政法人 情報処理推進機構: 共通脆弱性評価システムCVSS概説
JVN iPedia: CVSS計算ソフトウェア日本語版
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
15 June 2018
UID
swg21985658