CVE-2017-7558

HIGH
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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

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

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

Tenable Plugins

View all (15 total)

IDNameProductFamilySeverity
127146NewStart CGSL MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0004)NessusNewStart CGSL Local Security Checks
critical
124992EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1539)NessusHuawei Local Security Checks
critical
104106CentOS 7 : kernel (CESA-2017:2930)NessusCentOS Local Security Checks
high
104090RHEL 6 : MRG (RHSA-2017:2918)NessusRed Hat Local Security Checks
high
104088Oracle Linux 7 : kernel (ELSA-2017-2930-1) (BlueBorne)NessusOracle Linux Local Security Checks
high
104008Scientific Linux Security Update : kernel on SL7.x x86_64 (20171019)NessusScientific Linux Local Security Checks
high
104004RHEL 7 : kernel-rt (RHSA-2017:2931)NessusRed Hat Local Security Checks
high
104003RHEL 7 : kernel (RHSA-2017:2930)NessusRed Hat Local Security Checks
high
104001Oracle Linux 7 : kernel (ELSA-2017-2930)NessusOracle Linux Local Security Checks
high
103653Amazon Linux AMI : kernel (ALAS-2017-901)NessusAmazon Linux Local Security Checks
high
103365Debian DSA-3981-1 : linux - security update (BlueBorne) (Stack Clash)NessusDebian Local Security Checks
high
102981Virtuozzo 7 : readykernel-patch (VZA-2017-079)NessusVirtuozzo Local Security Checks
high
102980Virtuozzo 7 : readykernel-patch (VZA-2017-078)NessusVirtuozzo Local Security Checks
high
102898Fedora 26 : kernel (2017-78c4c71539)NessusFedora Local Security Checks
high
102895Fedora 25 : kernel (2017-4b4c022807)NessusFedora Local Security Checks
high