A NULL pointer dereference in the SQLite Session Extension in SQLite 3.53.1 and SQLite trunk builds before check-in e807d4e3798efd53 allows an…
A NULL pointer dereference in the SQLite Session Extension in SQLite 3.53.1 and SQLite trunk builds before check-in e807d4e3798efd53 allows an attacker who can supply a malformed changeset blob to cause a denial of service. The issue occurs when sqlite3changeset_apply_v3() applies a corrupt changeset and reaches sqlite3_value_type() with a NULL sqlite3_value pointer.
AI Analysis
Technical Summary
The vulnerability is a NULL pointer dereference in the SQLite Session Extension affecting SQLite version 3.53.1 and trunk builds before a specific commit (e807d4e3798efd53). An attacker who can supply a malformed changeset blob to sqlite3changeset_apply_v3() can trigger a denial of service by causing the function sqlite3_value_type() to operate on a NULL sqlite3_value pointer. This leads to application crashes due to the NULL pointer dereference.
Potential Impact
This vulnerability allows an attacker with the ability to supply a crafted changeset blob to cause a denial of service by crashing the application using the SQLite Session Extension. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid processing untrusted or malformed changeset blobs with the SQLite Session Extension to mitigate the risk of denial of service.
A NULL pointer dereference in the SQLite Session Extension in SQLite 3.53.1 and SQLite trunk builds before check-in e807d4e3798efd53 allows an…
Description
A NULL pointer dereference in the SQLite Session Extension in SQLite 3.53.1 and SQLite trunk builds before check-in e807d4e3798efd53 allows an attacker who can supply a malformed changeset blob to cause a denial of service. The issue occurs when sqlite3changeset_apply_v3() applies a corrupt changeset and reaches sqlite3_value_type() with a NULL sqlite3_value pointer.
CVSS v3.1
Score 5.5medium
Affected software
pkg:deb/ubuntu/[email protected]?arch=source&distro=trustypkg:deb/ubuntu/[email protected]+esm5?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-infra/xenialpkg:deb/ubuntu/[email protected]?arch=source&distro=xenialpkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]?arch=source&distro=focalpkg:deb/ubuntu/[email protected]?arch=source&distro=jammypkg:deb/ubuntu/[email protected]?arch=source&distro=jammypkg:deb/ubuntu/[email protected]?arch=source&distro=noblepkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability is a NULL pointer dereference in the SQLite Session Extension affecting SQLite version 3.53.1 and trunk builds before a specific commit (e807d4e3798efd53). An attacker who can supply a malformed changeset blob to sqlite3changeset_apply_v3() can trigger a denial of service by causing the function sqlite3_value_type() to operate on a NULL sqlite3_value pointer. This leads to application crashes due to the NULL pointer dereference.
Potential Impact
This vulnerability allows an attacker with the ability to supply a crafted changeset blob to cause a denial of service by crashing the application using the SQLite Session Extension. There is no impact on confidentiality or integrity, only availability is affected.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid processing untrusted or malformed changeset blobs with the SQLite Session Extension to mitigate the risk of denial of service.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-50812
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:14.04:LTS","Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a58b49168715ace43da799e
Added to database: 07/16/2026, 10:38:09 UTC
Last enriched: 07/16/2026, 12:24:37 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 10
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