CVE-2018-5344

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

In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5

http://www.securityfocus.com/bid/102503

https://access.redhat.com/errata/RHSA-2018:2948

https://access.redhat.com/errata/RHSA-2018:3083

https://access.redhat.com/errata/RHSA-2018:3096

https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

https://usn.ubuntu.com/3617-1/

https://usn.ubuntu.com/3617-2/

https://usn.ubuntu.com/3617-3/

https://usn.ubuntu.com/3619-1/

https://usn.ubuntu.com/3619-2/

https://usn.ubuntu.com/3632-1/

Details

Source: MITRE

Published: 2018-01-12

Updated: 2020-08-24

Type: CWE-362

Risk Information

CVSS v2

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

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

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
127281NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0074)NessusNewStart CGSL Local Security Checks
critical
127272NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0070)NessusNewStart CGSL Local Security Checks
critical
124986EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1533)NessusHuawei Local Security Checks
high
124834EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1512)NessusHuawei Local Security Checks
high
121918Photon OS 2.0: Linux PHSA-2018-2.0-0016NessusPhotonOS Local Security Checks
critical
121807Photon OS 1.0: Linux PHSA-2018-1.0-0107NessusPhotonOS Local Security Checks
high
119187Scientific Linux Security Update : kernel on SL7.x x86_64 (20181030)NessusScientific Linux Local Security Checks
high
118990CentOS 7 : kernel (CESA-2018:3083)NessusCentOS Local Security Checks
high
118770Oracle Linux 7 : kernel (ELSA-2018-3083)NessusOracle Linux Local Security Checks
high
118528RHEL 7 : kernel-rt (RHSA-2018:3096)NessusRed Hat Local Security Checks
high
118525RHEL 7 : kernel (RHSA-2018:3083)NessusRed Hat Local Security Checks
high
118513RHEL 7 : kernel-alt (RHSA-2018:2948) (Spectre)NessusRed Hat Local Security Checks
high
117544EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1235)NessusHuawei Local Security Checks
high
111918Photon OS 1.0: Linux PHSA-2018-1.0-0107 (deprecated)NessusPhotonOS Local Security Checks
high
111286Photon OS 2.0 : Linux / Postgresql / Binutils / Curl / Libtiff (PhotonOS-PHSA-2018-2.0-0016) (deprecated)NessusPhotonOS Local Security Checks
critical
109316Ubuntu 16.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3632-1)NessusUbuntu Local Security Checks
high
109127Amazon Linux 2 : kernel (ALAS-2018-956) (Dirty COW) (Spectre)NessusAmazon Linux Local Security Checks
high
108878Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3619-2)NessusUbuntu Local Security Checks
high
108842Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3619-1)NessusUbuntu Local Security Checks
high
108840Ubuntu 17.10 : linux-raspi2 vulnerabilities (USN-3617-3)NessusUbuntu Local Security Checks
high
108835Ubuntu 16.04 LTS : linux-hwe, linux-gcp, linux-oem vulnerabilities (USN-3617-2)NessusUbuntu Local Security Checks
high
108834Ubuntu 17.10 : linux vulnerabilities (USN-3617-1)NessusUbuntu Local Security Checks
high
108459EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1055)NessusHuawei Local Security Checks
medium
107003Ubuntu 14.04 LTS : linux vulnerabilities (USN-3583-1) (Meltdown)NessusUbuntu Local Security Checks
critical
106933Amazon Linux AMI : kernel (ALAS-2018-956) (Dirty COW) (Spectre)NessusAmazon Linux Local Security Checks
high
106588Virtuozzo 7 : readykernel-patch (VZA-2018-007)NessusVirtuozzo Local Security Checks
high
106406EulerOS 2.0 SP1 : kernel (EulerOS-SA-2018-1031)NessusHuawei Local Security Checks
critical
106280Fedora 26 : kernel (2018-8dc60a4feb)NessusFedora Local Security Checks
high
106275Fedora 27 : kernel (2018-262eb7c289)NessusFedora Local Security Checks
high