SQLite up to 3.49.0 concat_ws heap-based overflow

Summaryinfo

A vulnerability was found in SQLite up to 3.49.0 and classified as critical. This affects the function concat_ws. Such manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2025-3277. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in SQLite up to 3.49.0. It has been rated as critical. Affected by this issue is the function concat_ws. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

An integer overflow can be triggered in SQLite’s `concat_ws()` function. The resulting, truncated integer is then used to allocate a buffer. When SQLite then writes the resulting string to the buffer, it uses the original, untruncated size and thus a wild Heap Buffer overflow of size ~4GB can be triggered. This can result in arbitrary code execution.

The weakness was presented by 王跃林. The advisory is available at sqlite.org. This vulnerability is handled as CVE-2025-3277 since 04/04/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 235135 (RHEL 8 : nodejs:22 (RHSA-2025:4459)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.49.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (235135). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• SQLite

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17
• 3.18
• 3.19
• 3.20
• 3.21
• 3.22
• 3.23
• 3.24
• 3.25
• 3.26
• 3.27
• 3.28
• 3.29
• 3.30
• 3.31
• 3.32
• 3.33
• 3.34
• 3.35
• 3.36
• 3.37
• 3.38
• 3.39
• 3.40
• 3.41
• 3.42
• 3.43
• 3.44
• 3.45
• 3.46
• 3.47
• 3.48
• 3.49.0

License

• free

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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