Oracle MySQL Server up to 5.7.28/8.0.18 Compiling buffer overflow

Summaryinfo

A vulnerability described as very critical has been identified in Oracle MySQL Server up to 5.7.28/8.0.18. This issue affects some unknown processing of the component Compiling. The manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2019-5482. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 5.7.28/8.0.18 (Database Software). It has been classified as very critical. Affected is an unknown code block of the component Compiling. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.

The weakness was shared 04/15/2020 as Oracle Critical Patch Update Advisory - April 2020 as confirmed advisory (Website). The advisory is shared for download at oracle.com. This vulnerability is traded as CVE-2019-5482. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/16/2026).

As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 236591 (Alibaba Cloud Linux 3 : 0078: curl (ALINUX3-SA-2021:0078)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236591). The entries VDB-141878, VDB-148756, VDB-153686 and VDB-153290 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Server

Version

• 5.7.0
• 5.7.1
• 5.7.2
• 5.7.3
• 5.7.4
• 5.7.5
• 5.7.6
• 5.7.7
• 5.7.8
• 5.7.9
• 5.7.10
• 5.7.11
• 5.7.12
• 5.7.13
• 5.7.14
• 5.7.15
• 5.7.16
• 5.7.17
• 5.7.18
• 5.7.19
• 5.7.20
• 5.7.21
• 5.7.22
• 5.7.23
• 5.7.24
• 5.7.25
• 5.7.26
• 5.7.27
• 5.7.28
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.0.15
• 8.0.16
• 8.0.17
• 8.0.18

License

• open-source

Website

• Vendor: https://www.oracle.com

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Once again VulDB remains the best source for vulnerability data.

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