CVE-2016-7055— OpenSSL 安全漏洞
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一、 漏洞 CVE-2016-7055 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure in OpenSSL 1.0.2 and 1.1.0 before 1.1.0c that handles input lengths divisible by, but longer than 256 bits. Analysis suggests that attacks against RSA, DSA and DH private keys are impossible. This is because the subroutine in question is not used in operations with the private key itself and an input of the attacker's direct choice. Otherwise the bug can manifest itself as transient authentication and key negotiation failures or reproducible erroneous outcome of public-key operations with specially crafted input. Among EC algorithms only Brainpool P-512 curves are affected and one presumably can attack ECDH key negotiation. Impact was not analyzed in detail, because pre-requisites for attack are considered unlikely. Namely multiple clients have to choose the curve in question and the server has to share the private key among them, neither of which is default behaviour. Even then only clients that chose the curve will be affected.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
OpenSSL 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
OpenSSL是OpenSSL团队开发的一个开源的能够实现安全套接层（SSL v2/v3）和安全传输层（TLS v1）协议的通用加密库，它支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL 1.1.0c之前的1.0.2版本和1.1.0版本中的Broadwell-specific Montgomery multiplication procedure存在安全漏洞。攻击者可利用该漏洞造成拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| - | n/a | n/a | - |
二、漏洞 CVE-2016-7055 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2016-7055 厂商安全公告 (11)
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlx_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.htmlx_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlx_refsource_CONFIRM
- https://www.openssl.org/news/secadv/20161110.txtx_refsource_CONFIRM
CVE-2016-7055 其他参考 (2)
- https://www.tenable.com/security/tns-2017-04x_refsource_CONFIRM
同批安全公告 · n/a · 2017-05-04 · 共 13 条
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IV. Related Vulnerabilities
V. Comments for CVE-2016-7055
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