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CVE-2016-0799

Quick assessment

Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 1.0.2及之前版本和1.0.1及之前版本的crypto/bio/b_print.c文件中的‘fmtstr’函数中存在安全漏洞，该漏洞源于程序没有正确计算字符串长度。远程攻击者可借助较长的字符串利用该漏洞造成拒绝服务（溢出和越边界读取）。

AI Predicted 7.5 Difficulty: Moderate EPSS 32.41% · P98

Possible ATT&CK Techniques 1 AI

T1480 · Execution Guardrails
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I. Basic Information for CVE-2016-0799

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
OpenSSL‘BIO_*printf’函数安全漏洞
Source: CNNVD (China National Vulnerability Database)
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 1.0.2及之前版本和1.0.1及之前版本的crypto/bio/b_print.c文件中的‘fmtstr’函数中存在安全漏洞，该漏洞源于程序没有正确计算字符串长度。远程攻击者可借助较长的字符串利用该漏洞造成拒绝服务（溢出和越边界读取）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2016-0799

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III. Intelligence Information for CVE-2016-0799

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Vendor Advisories for CVE-2016-0799 (17)

Mailing List Discussions for CVE-2016-0799 (19)

Other References for CVE-2016-0799 (22)

Same Patch Batch · n/a · 2016-03-03 · 19 CVEs total

CVE-2015-6260 Cisco NX-OS Software SNMP数据包拒绝服务漏洞
CVE-2016-1359 Cisco Prime Infrastructure Log File 远程代码执行漏洞
CVE-2016-1358 Cisco Prime Infrastructure 安全漏洞
CVE-2016-1357 Cisco Policy Suite Confidentialpassword-management administration组件信息泄露漏洞
CVE-2016-1356 Cisco FireSIGHT System Software Convert Timing Channel 安全漏洞
CVE-2016-1288 Cisco Web Security Appliance Web代理框架拒绝服务漏洞
CVE-2016-1158 Corega CG-WLBARGMH和CG-WLBARGNL 跨站请求伪造漏洞
CVE-2016-0227 IBM Business Process Manager 跨站脚本漏洞
CVE-2015-7490 IBM InfoSphere Information Server 安全漏洞
CVE-2016-0702 OpenSSL 安全漏洞
CVE-2015-0718 Cisco NX-OS Software TCP栈拒绝服务漏洞
CVE-2016-2842 OpenSSL 安全漏洞
CVE-2016-1355 Cisco FireSIGHT System Software Device Management UI 跨站脚本漏洞
CVE-2016-1354 Cisco Unified Communications Domain Manager 跨站脚本漏洞
CVE-2016-1329 Cisco Nexus 3000 Series Switches和Cisco Nexus 3500 Platform Switches NX-OS Software 权限许可和访问
CVE-2016-0798 OpenSSL‘SRP_VBASE_get_by_user’方法内存泄露漏洞
CVE-2016-0797 OpenSSL‘BN_hex2bn’函数和‘BN_dec2bn’函数整数溢出漏洞
CVE-2016-0705 OpenSSL 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2016-0799

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