5.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-7104

CVE-2023-7104: A vulnerability was found in SQLite SQLite3 up to 3.43.0 and classified as critical. This issue...

A vulnerability was found in SQLite SQLite3 up to 3.43.0 and classified as critical. This issue affects the function sessionReadRecord of the file ext/session/sqlite3session.c of the component make alltest Handler. The manipulation leads to heap-based buffer overflow. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-248999.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-7104

CVE-2023-7104:

5.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

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Root Cause Analysis

The vulnerability description explicitly names sessionReadRecord in ext/session/sqlite3session.c as the affected function. The provided SQLite commit link (https://sqlite.org/src/info/0e4e7a05c4204b47) contains a patch for this file. Analyzing the diff from the fetched URL content shows that the changes are within a function that matches the structure and operations described for sessionReadRecord. Specifically, a new conditional block if( (pIn->nData-pIn->iNext)<8 ){ rc = SQLITE_CORRUPT_BKPT; }else{ ... } was added. This check prevents reading 8 bytes for SQLITE_INTEGER or SQLITE_FLOAT types if insufficient data remains in the input buffer pIn. The commit comment also states: "Fix a buffer overread in the sessions extension that could occur when processing a corrupt changeset." This directly supports the identification of sessionReadRecord as the vulnerable function where the overread could occur before the fix.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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