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Vulnerability Details : CVE-2017-7558

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.
Publish Date : 2018-07-26 Last Update Date : 2019-10-09
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 125

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2017:2930: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20172930 unix
RHSA-2017:2931: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20172931 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2017-7558

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
3 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
4 OS Linux Linux Kernel 4.7 RC5 * * Version Details Vulnerabilities
5 OS Linux Linux Kernel 4.7 RC4 * * Version Details Vulnerabilities
6 OS Linux Linux Kernel 4.7 RC6 * * Version Details Vulnerabilities
7 OS Linux Linux Kernel 4.7 RC7 * * Version Details Vulnerabilities
8 OS Linux Linux Kernel 4.7 RC1 * * Version Details Vulnerabilities
9 OS Linux Linux Kernel 4.7 RC3 * * Version Details Vulnerabilities
10 OS Linux Linux Kernel 4.7 RC2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 2
Linux Linux Kernel 8

- References For CVE-2017-7558

http://www.securityfocus.com/bid/100466
BID 100466 Linux Kernel CVE-2017-7558 Multiple Local Information Disclosure Vulnerabilities Release Date:2017-09-25
https://access.redhat.com/errata/RHSA-2017:2918
REDHAT RHSA-2017:2918
http://www.securitytracker.com/id/1039221
SECTRACK 1039221
https://access.redhat.com/errata/RHSA-2017:2930
REDHAT RHSA-2017:2930
https://access.redhat.com/errata/RHSA-2017:2931
REDHAT RHSA-2017:2931
https://www.debian.org/security/2017/dsa-3981
DEBIAN DSA-3981
https://marc.info/?l=linux-netdev&m=150348777122761&w=2
MLIST [linux-netdev] 20170823 [PATCH net] sctp: Avoid out-of-bounds reads from address storage
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558 CONFIRM
http://seclists.org/oss-sec/2017/q3/338
MLIST [oss-security] 20170823 CVE-2017-7558: Linux kernel: sctp: out-of-bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info()

- Metasploit Modules Related To CVE-2017-7558

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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