#VU93960 Heap-based buffer overflow in Microsoft SQL Server - CVE-2024-21449

Vulnerability identifier: #VU93960

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-21449

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SQL Server
Server applications / Database software

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in SQL Server Native Client OLE DB Provider. A remote attacker can trick a victim to connect to a malicious SQL server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SQL Server: before 2016 SP3, 2017 CU31, 2017, 2019 CU27, 2019, 2022 CU13, 2022, 2016 SP3, 2016 SP3, 2016 SP3, 2016 SP3

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External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21449

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.