Search threats, CVEs… ⌘K
Back to vendor advisories
Microsoft Security Response CenterCVE-2025-3277

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.

MediumVendor CVSS 9.8 / 10 1 CVE Published Sep 4, 2025 at 12:14 AM UTC
Get alerts for cbl2 libdb 5.3.28-7 on CBL-Mariner

Summary

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?

One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information.

If impact to additional products is identified, we will update the CVE to reflect this.

Products covered

  • cbl2 libdb 5.3.28-7 on CBL-Mariner 2.0

  • azl3 sqlite 3.44.0-1 on Azure Linux 3.0

  • cbl2 sqlite 3.39.2-3 on CBL Mariner 2.0

  • azl3 libdb 5.3.28-9 on Azure Linux 3.0

  • cbl2 libdb 5.3.28-7 on CBL Mariner 2.0

  • cbl2 sqlite 3.39.2-3 on CBL-Mariner 2.0

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 1

CVE-2025-3277

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Keep investigating
See every advisory from this vendor