CVE-2019-12819

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

An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.

References

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html

http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html

http://www.securityfocus.com/bid/108768

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb

https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb

https://security.netapp.com/advisory/ntap-20190710-0002/

https://usn.ubuntu.com/4094-1/

https://usn.ubuntu.com/4118-1/

Details

Source: MITRE

Published: 2019-06-14

Updated: 2019-06-18

Type: CWE-416

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

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:*:*:*:*:*:*:*:*

Tenable Plugins

View all (18 total)

IDNameProductFamilySeverity
145850CentOS 8 : kernel (CESA-2020:1769)NessusCentOS Local Security Checks
critical
137291Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5715)NessusOracle Linux Local Security Checks
critical
137217OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0020) (Stack Clash)NessusOracleVM Local Security Checks
critical
137173Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5708)NessusOracle Linux Local Security Checks
critical
135614EulerOS Virtualization 3.0.2.2 : kernel (EulerOS-SA-2020-1452)NessusHuawei Local Security Checks
high
129284SUSE SLED15 / SLES15 Security Update : kernel-source-rt (SUSE-SU-2019:2430-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (SACK Panic) (SACK Slowness) (Spectre)NessusSuSE Local Security Checks
high
128929EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2019-1926)NessusHuawei Local Security Checks
critical
128478Ubuntu 16.04 LTS / 18.04 LTS : linux-aws vulnerabilities (USN-4118-1)NessusUbuntu Local Security Checks
critical
127889Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4094-1)NessusUbuntu Local Security Checks
high
126744SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1855-1) (SACK Slowness)NessusSuSE Local Security Checks
high
126742SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1852-1)NessusSuSE Local Security Checks
high
126741SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:1851-1) (SACK Slowness)NessusSuSE Local Security Checks
high
126691SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1829-1)NessusSuSE Local Security Checks
high
126688SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1823-1)NessusSuSE Local Security Checks
high
126059openSUSE Security Update : the Linux Kernel (openSUSE-2019-1571) (SACK Panic) (SACK Slowness)NessusSuSE Local Security Checks
high
126045SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1550-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (SACK Panic) (SACK Slowness) (Spectre)NessusSuSE Local Security Checks
high
126040openSUSE Security Update : the Linux Kernel (openSUSE-2019-1579) (SACK Panic) (SACK Slowness)NessusSuSE Local Security Checks
high
126033openSUSE Security Update : the Linux Kernel (openSUSE-2019-1570) (SACK Panic) (SACK Slowness)NessusSuSE Local Security Checks
high