CVE-2017-2671

medium
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 ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

References

http://openwall.com/lists/oss-security/2017/04/04/8

http://www.securityfocus.com/bid/97407

https://access.redhat.com/errata/RHSA-2017:1842

https://access.redhat.com/errata/RHSA-2017:2077

https://access.redhat.com/errata/RHSA-2017:2669

https://access.redhat.com/errata/RHSA-2018:1854

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893

https://github.com/danieljiang0415/android_kernel_crash_poc

https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893

https://twitter.com/danieljiang0415/status/845116665184497664

https://usn.ubuntu.com/3754-1/

https://www.exploit-db.com/exploits/42135/

Details

Source: MITRE

Published: 2017-04-05

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.10.8 (inclusive)

Tenable Plugins

View all (43 total)

IDNameProductFamilySeverity
127425NewStart CGSL MAIN 4.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0152)NessusNewStart CGSL Local Security Checks
high
124986EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1533)NessusHuawei Local Security Checks
high
124825EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1502)NessusHuawei Local Security Checks
high
121686Photon OS 1.0: Linux PHSA-2017-0014NessusPhotonOS Local Security Checks
high
112113Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3754-1)NessusUbuntu Local Security Checks
critical
111863Photon OS 1.0: Linux PHSA-2017-0014 (deprecated)NessusPhotonOS Local Security Checks
high
110887Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20180619) (Spectre)NessusScientific Linux Local Security Checks
high
110701Oracle Linux 6 : kernel (ELSA-2018-1854)NessusOracle Linux Local Security Checks
high
110694Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2018-041)NessusVirtuozzo Local Security Checks
high
110645CentOS 6 : kernel (CESA-2018:1854) (Spectre)NessusCentOS Local Security Checks
critical
110600RHEL 6 : kernel (RHSA-2018:1854) (Spectre)NessusRed Hat Local Security Checks
high
106469OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0015) (BlueBorne) (Meltdown) (Spectre) (Stack Clash)NessusOracleVM Local Security Checks
critical
105248OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0174) (BlueBorne) (Dirty COW) (Stack Clash)NessusOracleVM Local Security Checks
high
105247Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3659)NessusOracle Linux Local Security Checks
high
105147OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0173) (BlueBorne) (Stack Clash)NessusOracleVM Local Security Checks
high
105145Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3658)NessusOracle Linux Local Security Checks
high
105144Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3657)NessusOracle Linux Local Security Checks
high
104454OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0168)NessusOracleVM Local Security Checks
high
104370Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3636)NessusOracle Linux Local Security Checks
high
103354SUSE SLES11 Security Update : kernel (SUSE-SU-2017:2525-1) (Stack Clash)NessusSuSE Local Security Checks
critical
103046RHEL 6 : MRG (RHSA-2017:2669)NessusRed Hat Local Security Checks
high
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)NessusOracle Linux Local Security Checks
critical
102734CentOS 7 : kernel (CESA-2017:1842) (Stack Clash)NessusCentOS Local Security Checks
high
102645Scientific Linux Security Update : kernel on SL7.x x86_64 (20170801)NessusScientific Linux Local Security Checks
high
102511Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)NessusOracle Linux Local Security Checks
critical
102281Oracle Linux 7 : kernel (ELSA-2017-1842)NessusOracle Linux Local Security Checks
high
102151RHEL 7 : kernel-rt (RHSA-2017:2077)NessusRed Hat Local Security Checks
high
102143RHEL 7 : kernel (RHSA-2017:1842) (Stack Clash)NessusRed Hat Local Security Checks
high
101929Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)NessusUbuntu Local Security Checks
critical
100668Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)NessusUbuntu Local Security Checks
critical
100665Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3312-2)NessusUbuntu Local Security Checks
critical
100664Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3312-1)NessusUbuntu Local Security Checks
critical
100320SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1360-1)NessusSuSE Local Security Checks
critical
100214SUSE SLES11 Security Update : kernel (SUSE-SU-2017:1301-1)NessusSuSE Local Security Checks
high
100150SUSE SLES12 Security Update : kernel (SUSE-SU-2017:1247-1)NessusSuSE Local Security Checks
critical
100106Amazon Linux AMI : kernel (ALAS-2017-828)NessusAmazon Linux Local Security Checks
high
100044openSUSE Security Update : the Linux Kernel (openSUSE-2017-562)NessusSuSE Local Security Checks
high
100023SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1183-1)NessusSuSE Local Security Checks
high
99927openSUSE Security Update : the Linux Kernel (openSUSE-2017-532)NessusSuSE Local Security Checks
high
99733Debian DLA-922-1 : linux security updateNessusDebian Local Security Checks
high
99409Fedora 24 : kernel (2017-502cf68d68)NessusFedora Local Security Checks
high
99407Fedora 25 : kernel (2017-3a9ec92dd6)NessusFedora Local Security Checks
high