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CVE-2019-19923

28
FAUCET Score

CVE-2019-19923 describes a NULL pointer dereference vulnerability in SQLite 3.30.1's flattenSubquery function, specifically when handling SELECT DISTINCT queries with a LEFT JOIN on a view. This flaw, affecting various products including Debian, Oracle, and Red Hat, carries a CVSS score of 7.5 (High) due to its network-exploitable nature and potential for high availability impact. While no public exploit code or active exploitation has been observed, its presence in Chrome 80's security fixes indicates its relevance, despite limited community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
3.30.1CPE matchmatch criteria
cpe:2.3:a:sqlite:sqlite:3.30.1:*:*:*:*:*:*:*
< 1.0.1.1CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*
<= 8.0.19CPE matchmatch criteria
cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.81%
Probability of exploitation in next 30 days
EPSS Percentile
93.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0681 is in the 89th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:80.0.3987.87-1.el6_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: sqlite-0:3.26.0-6.el8
View patch

Vendor Advisories (1)

redhatCVE-2019-19923Moderate

sqlite: mishandling of certain uses of SELECT DISTINCT involving a LEFT JOIN in flattenSubquery in select.c leads to a NULL pointer dereference

Jan 8, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-02/msg00010.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-02/msg00015.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-02/msg00025.html
Mailing ListThird Party Advisory
access.redhat.com / errata/RHSA-2020:0514
Third Party Advisory
cert-portal.siemens.com / productcert/pdf/ssa-389290.pdf
PatchThird Party Advisory
github.com / sqlite/sqlite/commit/396afe6f6aa90a31303c183e11b2b2d4b7956b35
Patch
security.netapp.com / advisory/ntap-20200114-0003
Third Party Advisory
usn.ubuntu.com / 4298-1
Broken Link
debian.org / security/2020/dsa-4638
Third Party Advisory
oracle.com / security-alerts/cpuapr2020.html
PatchThird Party Advisory