Is CVE-2019-9506 in the CISA KEV catalog?

No. CVE-2019-9506 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-9506?

CVE-2019-9506 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2019-9506?

CVE-2019-9506 has an EPSS score of 2.69% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-9506?

Upgrade linux on debian 11 to 5.2.6-1 or later. Fixes are available for 50 affected products.

CVE & CISA-KEV Catalog

CVE-2019-9506

HIGHEPSS 84th pctl

8.1

CVSS v3

NVD

Description

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.

CWE-310Cryptographic Issues CWE-327

How to fix

Remediation Available

linuxDebian

Fixed in:5.2.6-1CVE-2019-9506

linuxUbuntu

Fixed in:4.15.0-60.67USN-4115-1

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:4.15.0-1056.61USN-4115-1

linux-gcpUbuntu

Fixed in:4.15.0-1041.43USN-4115-1

linux-gke-4.15Ubuntu

Fixed in:4.15.0-1041.43USN-4115-1

linux-gke-5.0Ubuntu

Fixed in:5.0.0-1020.20~18.04.1USN-4147-1

linux-hweUbuntu

Fixed in:4.15.0-60.67~16.04.1USN-4115-1

Fixed in:5.0.0-31.33~18.04.1USN-4147-1

linux-image-4.15.0-1022-oracleUbuntu

Fixed in:4.15.0-1022.25~16.04.1USN-4115-1

Fixed in:4.15.0-1022.25USN-4115-1

linux-image-4.15.0-1041-gcpUbuntu

Fixed in:4.15.0-1041.43USN-4115-1

linux-image-4.15.0-1041-gkeUbuntu

Fixed in:4.15.0-1041.43USN-4115-1

linux-image-4.15.0-1043-kvmUbuntu

Fixed in:4.15.0-1043.43USN-4115-1

linux-image-4.15.0-1044-raspi2Ubuntu

Fixed in:4.15.0-1044.47USN-4115-1

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-4.15.0-1056-azureUbuntu

Fixed in:4.15.0-1056.61USN-4115-1

linux-image-4.15.0-60-genericUbuntu

Fixed in:4.15.0-60.67~16.04.1USN-4115-1

Fixed in:4.15.0-60.67USN-4115-1

linux-image-4.15.0-60-generic-lpaeUbuntu

Fixed in:4.15.0-60.67~16.04.1USN-4115-1

Fixed in:4.15.0-60.67USN-4115-1

linux-image-4.15.0-60-lowlatencyUbuntu

Fixed in:4.15.0-60.67~16.04.1USN-4115-1

Fixed in:4.15.0-60.67USN-4115-1

linux-image-5.0.0-1020-gkeUbuntu

Fixed in:5.0.0-1020.20~18.04.1USN-4147-1

linux-image-5.0.0-31-genericUbuntu

Fixed in:5.0.0-31.33~18.04.1USN-4147-1

linux-image-5.0.0-31-generic-lpaeUbuntu

Fixed in:5.0.0-31.33~18.04.1USN-4147-1

linux-image-5.0.0-31-lowlatencyUbuntu

Fixed in:5.0.0-31.33~18.04.1USN-4147-1

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-azureUbuntu

Fixed in:4.15.0.1056.59USN-4115-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1041.55USN-4115-1

linux-image-genericUbuntu

Fixed in:4.15.0.60.62USN-4115-1

linux-image-generic-hwe-16.04Ubuntu

Fixed in:4.15.0.60.81USN-4115-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.0.0.31.88USN-4147-1

linux-image-generic-lpaeUbuntu

Fixed in:4.15.0.60.62USN-4115-1

linux-image-generic-lpae-hwe-16.04Ubuntu

Fixed in:4.15.0.60.81USN-4115-1

linux-image-generic-lpae-hwe-18.04Ubuntu

Fixed in:5.0.0.31.88USN-4147-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1041.55USN-4115-1

Fixed in:4.15.0.1041.44USN-4115-1

linux-image-gke-4.15Ubuntu

Fixed in:4.15.0.1041.44USN-4115-1

linux-image-gke-5.0Ubuntu

Fixed in:5.0.0.1020.9USN-4147-1

linux-image-kvmUbuntu

Fixed in:4.15.0.1043.43USN-4115-1

linux-image-lowlatencyUbuntu

Fixed in:4.15.0.60.62USN-4115-1

linux-image-lowlatency-hwe-16.04Ubuntu

Fixed in:4.15.0.60.81USN-4115-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.0.0.31.88USN-4147-1

linux-image-oemUbuntu

Fixed in:4.15.0.60.81USN-4115-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1022.16USN-4115-1

Fixed in:4.15.0.1022.25USN-4115-1

linux-image-raspi2Ubuntu

Fixed in:4.15.0.1044.42USN-4115-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.0.0.31.88USN-4147-1

linux-image-virtualUbuntu

Fixed in:4.15.0.60.62USN-4115-1

linux-image-virtual-hwe-16.04Ubuntu

Fixed in:4.15.0.60.81USN-4115-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.0.0.31.88USN-4147-1

linux-kvmUbuntu

Fixed in:4.15.0-1043.43USN-4115-1

linux-oracleUbuntu

Fixed in:4.15.0-1022.25~16.04.1USN-4115-1

Fixed in:4.15.0-1022.25USN-4115-1

linux-raspi2Ubuntu

Fixed in:4.15.0-1044.47USN-4115-1

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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

2.69%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

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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.