CVE-2017-3738— OpenSSL 信息泄露漏洞
一分钟漏洞结论
影响对象
OpenSSL Software Foundation OpenSSL
利用判断
利用概率较高，应尽快评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
OpenSSL是OpenSSL团队的一个开源的能够实现安全套接层（SSLv2/v3）和安全传输层（TLSv1）协议的通用加密库。该产品支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL 1.0.2版本至1.0.2m版本和1.1.0版本至1.1.0g版本中的AVX2 Montgomery乘法运算存在信息泄露漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。
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一、 漏洞 CVE-2017-3738 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 an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.
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 信息泄露漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
OpenSSL是OpenSSL团队的一个开源的能够实现安全套接层（SSLv2/v3）和安全传输层（TLSv1）协议的通用加密库。该产品支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL 1.0.2版本至1.0.2m版本和1.1.0版本至1.1.0g版本中的AVX2 Montgomery乘法运算存在信息泄露漏洞。该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。
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 |
|---|---|---|---|---|
| OpenSSL Software Foundation | OpenSSL | 1.0.2-1.02m | - |
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二、漏洞 CVE-2017-3738 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2017-3738 补丁与修复 (1)
CVE-2017-3738 厂商安全公告 (19)
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🔗 http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html x_refsource_CONFIRM
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🔗 http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html x_refsource_CONFIRM
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🔗 https://www.openssl.org/news/secadv/20180327.txt x_refsource_CONFIRM
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http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html x_refsource_CONFIRM
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🔗 https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html x_refsource_CONFIRM
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🔗 https://www.openssl.org/news/secadv/20171207.txt x_refsource_CONFIRM
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🔗 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html x_refsource_CONFIRM
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https://security.netapp.com/advisory/ntap-20171208-0001/ x_refsource_CONFIRM
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CVE-2017-3738 安全博客文章 (1)
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https://nodejs.org/en/blog/vulnerability/december-2017-security-releases/ x_refsource_CONFIRM
CVE-2017-3738 其他参考 (6)
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🔗 https://www.tenable.com/security/tns-2017-16 x_refsource_CONFIRM
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🔗 https://www.tenable.com/security/tns-2018-04 x_refsource_CONFIRM
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🔗 https://www.tenable.com/security/tns-2018-07 x_refsource_CONFIRM
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🔗 https://www.tenable.com/security/tns-2018-06 x_refsource_CONFIRM
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🔗 https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc vendor-advisory x_refsource_FREEBSD
IV. Related Vulnerabilities
V. Comments for CVE-2017-3738
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