CVE-2017-7558
Quick assessment
Affected
Linux kernel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.7-rc1版本至4.13版本中的‘inet_diag_msg_sctp{,l}addr_fill()’和‘sctp_get_sctp_info()’函数存在越界读取漏洞。攻击者可利用该漏洞泄露内核数据。
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I. Basic Information for CVE-2017-7558
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel 4.7-rc1版本至4.13版本中的‘inet_diag_msg_sctp{,l}addr_fill()’和‘sctp_get_sctp_info()’函数存在越界读取漏洞。攻击者可利用该漏洞泄露内核数据。
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
II. Public POCs for CVE-2017-7558
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Vendor Advisories for CVE-2017-7558 (6)
Mailing List Discussions for CVE-2017-7558 (2)
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oss-sec: CVE-2017-7558: Linux kernel: sctp: out-of-bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() mailing-list x_refsource_MLIST
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V. Comments for CVE-2017-7558
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