CVE-2019-9936
HighCVSS 7.5Exploitation Probability (EPSS)
Very high risk92th percentile - higher than 92% of all known CVEs
Summary
In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak.
Risk Assessment
This could allow an attacker to read data from memory, potentially leading to disclosure of sensitive information.
Recommendation
Update SQLite to a version newer than 3.27.2 that includes a fix for this vulnerability.
Other vulnerabilities in SQLite
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Out-of-bounds read in SQLite allows an authorized attacker to elevate privileges locally.
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- CVE-2017-15286High
SQLite version 3.20.1 has a NULL pointer dereference in the tableColumnList function in shell.c. This issue occurs because certain cases where `sqlite3_step(pStmt)==SQLITE_ROW` is false are not considered, leading to an uninitialized data structure.
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- CVE-2015-3416High
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- CVE-2015-3415High
The sqlite3VdbeExec function in SQLite before version 3.8.9 does not properly implement comparison operators, allowing attackers to cause a denial of service or potentially other unspecified impacts via a crafted CHECK clause.
- CVE-2015-3414High
SQLite before 3.8.9 does not properly implement the dequoting of collation-sequence names, allowing context-dependent attackers to cause a denial of service (uninitialized memory access and application crash) or possibly have unspecified other impact via a crafted COLLATE clause.
Original NVD description (English source)
In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5_hash.c.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS