CVE-2017-6347

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel before 4.10.1 has incorrect expectations about skb data layout, which allows local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.1

http://www.openwall.com/lists/oss-security/2017/02/28/5

http://www.securityfocus.com/bid/96487

https://bugzilla.redhat.com/show_bug.cgi?id=1427984

https://github.com/torvalds/linux/commit/ca4ef4574f1ee5252e2cd365f8f5d5bafd048f32

Details

Source: MITRE

Published: 2017-03-01

Updated: 2017-03-03

Type: CWE-125

Risk Information

CVSS v2

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.10 (inclusive)

Tenable Plugins

View all (15 total)

IDNameProductFamilySeverity
124810EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1486)NessusHuawei Local Security Checks
high
111857Photon OS 1.0: Linux PHSA-2017-0008 (deprecated)NessusPhotonOS Local Security Checks
critical
102774OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0145) (Stack Clash)NessusOracleVM Local Security Checks
critical
102773Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3609) (Stack Clash)NessusOracle Linux Local Security Checks
critical
101929Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)NessusUbuntu Local Security Checks
critical
100023SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1183-1)NessusSuSE Local Security Checks
high
99658Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3265-2)NessusUbuntu Local Security Checks
critical
99657Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3265-1)NessusUbuntu Local Security Checks
critical
99392OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0062)NessusOracleVM Local Security Checks
high
99389Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3539)NessusOracle Linux Local Security Checks
high
99157openSUSE Security Update : the Linux Kernel (openSUSE-2017-419)NessusSuSE Local Security Checks
high
99156openSUSE Security Update : the Linux Kernel (openSUSE-2017-418)NessusSuSE Local Security Checks
high
99038Amazon Linux AMI : kernel (ALAS-2017-811)NessusAmazon Linux Local Security Checks
high
97505Fedora 25 : kernel (2017-d875ae8299)NessusFedora Local Security Checks
high
97503Fedora 24 : kernel (2017-ad67543fc5)NessusFedora Local Security Checks
high