CVE-2019-19050

HIGHEPSS 92th pctl

7.5

CVSS v3

Description

A memory leak in the crypto_reportstat() function in crypto/crypto_user_stat.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering crypto_reportstat_alg() failures, aka CID-c03b04dcdba1.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

linuxDebian

Fixed in:5.4.6-1CVE-2019-19050

linux-aws-5.0Ubuntu

Fixed in:5.0.0-1024.27~18.04.1USN-4258-1

linux-azure-5.3Ubuntu

Fixed in:5.3.0-1013.14~18.04.1USN-4284-1

linux-gcpUbuntu

Fixed in:5.0.0-1029.30~18.04.1USN-4258-1

linux-gcp-5.3Ubuntu

Fixed in:5.3.0-1012.13~18.04.1USN-4284-1

linux-gke-5.0Ubuntu

Fixed in:5.0.0-1029.30~18.04.1USN-4258-1

linux-hweUbuntu

Fixed in:5.3.0-40.32~18.04.1USN-4284-1

linux-image-5.0.0-1010-oracleUbuntu

Fixed in:5.0.0-1010.15~18.04.1USN-4258-1

linux-image-5.0.0-1024-awsUbuntu

Fixed in:5.0.0-1024.27~18.04.1USN-4258-1

linux-image-5.0.0-1029-gcpUbuntu

Fixed in:5.0.0-1029.30~18.04.1USN-4258-1

linux-image-5.0.0-1029-gkeUbuntu

Fixed in:5.0.0-1029.30~18.04.1USN-4258-1

linux-image-5.3.0-1012-gcpUbuntu

Fixed in:5.3.0-1012.13~18.04.1USN-4284-1

linux-image-5.3.0-1013-azureUbuntu

Fixed in:5.3.0-1013.14~18.04.1USN-4284-1

linux-image-5.3.0-1018-raspi2Ubuntu

Fixed in:5.3.0-1018.20~18.04.1USN-4284-1

linux-image-5.3.0-40-genericUbuntu

Fixed in:5.3.0-40.32~18.04.1USN-4284-1

linux-image-5.3.0-40-generic-lpaeUbuntu

Fixed in:5.3.0-40.32~18.04.1USN-4284-1

linux-image-5.3.0-40-lowlatencyUbuntu

Fixed in:5.3.0-40.32~18.04.1USN-4284-1

linux-image-aws-edgeUbuntu

Fixed in:5.0.0.1024.38USN-4258-1

linux-image-azure-edgeUbuntu

Fixed in:5.3.0.1013.13USN-4284-1

linux-image-gcpUbuntu

Fixed in:5.0.0.1029.33USN-4258-1

linux-image-gcp-edgeUbuntu

Fixed in:5.3.0.1012.11USN-4284-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.3.0.40.97USN-4284-1

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

Fixed in:5.3.0.40.97USN-4284-1

linux-image-gke-5.0Ubuntu

Fixed in:5.0.0.1029.17USN-4258-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.3.0.40.97USN-4284-1

linux-image-oracle-edgeUbuntu

Fixed in:5.0.0.1010.9USN-4258-1

linux-image-raspi2-hwe-18.04Ubuntu

Fixed in:5.3.0.1018.7USN-4284-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.3.0.40.97USN-4284-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.3.0.40.97USN-4284-1

linux-oracle-5.0Ubuntu

Fixed in:5.0.0-1010.15~18.04.1USN-4258-1

linux-raspi2-5.3Ubuntu

Fixed in:5.3.0-1018.20~18.04.1USN-4284-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

Exploit Intelligence

5.08%probability of exploitation in 30 days

92ndpercentile

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

References

Patch1

github.com

Third-Party Advisory4

Other references2

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	60%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	19%	-	-

Common questions

How do I fix CVE-2019-19050?

Published advisories record a fix for 31 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2019-19050 being actively exploited?

Not that we know of. CVE-2019-19050 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 5.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 92% of all scored CVEs.

How severe is CVE-2019-19050?

CVE-2019-19050 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2019-19050 affect?

Published advisories record a fix for linux (Debian), linux-aws-5.0 (Ubuntu), linux-azure-5.3 (Ubuntu), linux-gcp (Ubuntu), and 27 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.