CVE-2017-7558

MEDIUM

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.

References

http://seclists.org/oss-sec/2017/q3/338

http://www.securityfocus.com/bid/100466

http://www.securitytracker.com/id/1039221

https://access.redhat.com/errata/RHSA-2017:2918

https://access.redhat.com/errata/RHSA-2017:2930

https://access.redhat.com/errata/RHSA-2017:2931

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558

https://marc.info/?l=linux-netdev&m=150348777122761&w=2

https://www.debian.org/security/2017/dsa-3981

Details

Source: MITRE

Published: 2018-07-26

Updated: 2019-10-09

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH