NULL pointer dereference in Sqlite

CVE-2019-9937

In SQLite 3.27.2, interleaving reads and writes in a single transaction with an fts5 virtual table will lead to a NULL Pointer Dereference in fts5ChunkIterate in sqlite3.c. This is related to ext/fts5/fts5_hash.c and ext/fts5/fts5_index.c.

EPSS: 0.063 (92.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Sqlite — versions 3.27.2
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-9937?
CVE-2019-9937 is a high-severity vulnerability in Sqlite, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-03-22.
How severe is CVE-2019-9937?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-9937 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.