CVE & CISA-KEV Catalog

CVE-2019-12818

HIGHEPSS 92th pctl
7.5
CVSS v3
NVD

Description

An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.

How to fix

Remediation Available
linuxDebian
Fixed in:4.19.28-1CVE-2019-12818
Fixed in:4.19.28-1CVE-2019-12818
Fixed in:4.19.28-1CVE-2019-12818
Fixed in:4.19.28-1CVE-2019-12818
linuxUbuntu
Fixed in:4.15.0-58.64USN-4094-1
linux-awsUbuntu
Fixed in:4.15.0-1047.49USN-4118-1
linux-aws-hweUbuntu
Fixed in:4.15.0-1047.49~16.04.1USN-4118-1
linux-azureUbuntu
Fixed in:4.15.0-1055.60USN-4094-1
linux-gcpUbuntu
Fixed in:4.15.0-1040.42~16.04.1USN-4094-1
Fixed in:4.15.0-1040.42USN-4094-1
linux-gke-4.15Ubuntu
Fixed in:4.15.0-1040.42USN-4094-1
linux-hweUbuntu
Fixed in:4.15.0-58.64~16.04.1USN-4094-1
linux-image-4.15.0-1021-oracleUbuntu
Fixed in:4.15.0-1021.23~16.04.1USN-4094-1
Fixed in:4.15.0-1021.23USN-4094-1
linux-image-4.15.0-1040-gcpUbuntu
Fixed in:4.15.0-1040.42~16.04.1USN-4094-1
Fixed in:4.15.0-1040.42USN-4094-1
linux-image-4.15.0-1040-gkeUbuntu
Fixed in:4.15.0-1040.42USN-4094-1
linux-image-4.15.0-1042-kvmUbuntu
Fixed in:4.15.0-1042.42USN-4094-1
linux-image-4.15.0-1043-raspi2Ubuntu
Fixed in:4.15.0-1043.46USN-4094-1
linux-image-4.15.0-1047-awsUbuntu
Fixed in:4.15.0-1047.49~16.04.1USN-4118-1
Fixed in:4.15.0-1047.49USN-4118-1
linux-image-4.15.0-1050-oemUbuntu
Fixed in:4.15.0-1050.57USN-4094-1
linux-image-4.15.0-1060-snapdragonUbuntu
Fixed in:4.15.0-1060.66USN-4094-1
linux-image-4.15.0-58-genericUbuntu
Fixed in:4.15.0-58.64~16.04.1USN-4094-1
Fixed in:4.15.0-58.64USN-4094-1
linux-image-4.15.0-58-generic-lpaeUbuntu
Fixed in:4.15.0-58.64~16.04.1USN-4094-1
Fixed in:4.15.0-58.64USN-4094-1
linux-image-4.15.0-58-lowlatencyUbuntu
Fixed in:4.15.0-58.64~16.04.1USN-4094-1
Fixed in:4.15.0-58.64USN-4094-1
linux-image-awsUbuntu
Fixed in:4.15.0.1047.46USN-4118-1
linux-image-aws-hweUbuntu
Fixed in:4.15.0.1047.47USN-4118-1
linux-image-gcpUbuntu
Fixed in:4.15.0.1040.54USN-4094-1
Fixed in:4.15.0.1040.42USN-4094-1
linux-image-genericUbuntu
Fixed in:4.15.0.58.60USN-4094-1
linux-image-generic-hwe-16.04Ubuntu
Fixed in:4.15.0.58.79USN-4094-1
linux-image-generic-lpaeUbuntu
Fixed in:4.15.0.58.60USN-4094-1
linux-image-generic-lpae-hwe-16.04Ubuntu
Fixed in:4.15.0.58.79USN-4094-1
linux-image-gkeUbuntu
Fixed in:4.15.0.1040.54USN-4094-1
Fixed in:4.15.0.1040.43USN-4094-1
linux-image-gke-4.15Ubuntu
Fixed in:4.15.0.1040.43USN-4094-1
linux-image-kvmUbuntu
Fixed in:4.15.0.1042.42USN-4094-1
linux-image-lowlatencyUbuntu
Fixed in:4.15.0.58.60USN-4094-1
linux-image-lowlatency-hwe-16.04Ubuntu
Fixed in:4.15.0.58.79USN-4094-1
linux-image-oemUbuntu
Fixed in:4.15.0.58.79USN-4094-1
Fixed in:4.15.0.1050.54USN-4094-1
linux-image-oracleUbuntu
Fixed in:4.15.0.1021.15USN-4094-1
Fixed in:4.15.0.1021.24USN-4094-1
linux-image-raspi2Ubuntu
Fixed in:4.15.0.1043.41USN-4094-1
linux-image-snapdragonUbuntu
Fixed in:4.15.0.1060.63USN-4094-1
linux-image-virtualUbuntu
Fixed in:4.15.0.58.60USN-4094-1
linux-image-virtual-hwe-16.04Ubuntu
Fixed in:4.15.0.58.79USN-4094-1
linux-kvmUbuntu
Fixed in:4.15.0-1042.42USN-4094-1
linux-oemUbuntu
Fixed in:4.15.0-1050.57USN-4094-1
linux-oracleUbuntu
Fixed in:4.15.0-1021.23~16.04.1USN-4094-1
Fixed in:4.15.0-1021.23USN-4094-1
linux-raspi2Ubuntu
Fixed in:4.15.0-1043.46USN-4094-1
linux-snapdragonUbuntu
Fixed in:4.15.0-1060.66USN-4094-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

5.48%probability of exploitation in 30 days
92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-21758High7.592%-Fix
CVE-2023-21547High7.588%-Fix
CVE-2014-3470Medium4.386%-Fix
CVE-2021-44224High8.282%-Fix
CVE-2016-0742High7.582%-Fix
CVE-2009-1386Medium5.080%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.