National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-7558 Detail

Current 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:  MITRE
Description Last Modified:  07/26/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://seclists.org/oss-sec/2017/q3/338 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/100466 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039221 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2918 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2930 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2931 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558 Issue Tracking Third Party Advisory
https://marc.info/?l=linux-netdev&m=150348777122761&w=2 Patch Third Party Advisory
https://www.debian.org/security/2017/dsa-3981 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7558
NVD Published Date:
07/26/2018
NVD Last Modified:
09/26/2018