CVE-2018-20346

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

SQLite before 3.25.3, when the FTS3 extension is enabled, encounters an integer overflow (and resultant buffer overflow) for FTS3 queries that occur after crafted changes to FTS3 shadow tables, allowing remote attackers to execute arbitrary code by leveraging the ability to run arbitrary SQL statements (such as in certain WebSQL use cases), aka Magellan.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-20346.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-20346

OS impact

OSVersionStatusFixed in
arch archfixed3.26.0-1
debian debianbookwormfixed71.0.3578.80-1
debian debianbullseyefixed71.0.3578.80-1
debian debianforkyfixed71.0.3578.80-1
debian debiansidfixed71.0.3578.80-1
debian debiantrixiefixed71.0.3578.80-1
suse slesaffected

References

Verify integrity in audit chain (admin only). AS-IS.