Oracle MySQL Server up to 5.7.34/8.0.25 LZ4 out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Oracle MySQL Server up to 5.7.34/8.0.25. This affects an unknown part of the component LZ4. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2019-17543. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 5.7.34/8.0.25 (Database Software) and classified as critical. This issue affects an unknown functionality of the component LZ4. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability.

The weakness was shared 07/20/2021 as Oracle Critical Patch Update Advisory - July 2021. It is possible to read the advisory at oracle.com. The identification of this vulnerability is CVE-2019-17543. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 242130 (Oracle Linux 8 : lz4 (ELSA-2025-11035)), 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 databases at Tenable (242130) and CERT Bund (WID-SEC-2025-1550). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Red Hat Enterprise Linux

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 242130
Nessus Name: Oracle Linux 8 : lz4 (ELSA-2025-11035)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/14/2019 🔍
07/20/2021 +645 days 🔍
07/20/2021 +0 days 🔍
07/21/2021 +1 days 🔍
07/16/2025 +1456 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - July 2021
Status: Confirmed

CVE: CVE-2019-17543 (🔍)
GCVE (CVE): GCVE-0-2019-17543
GCVE (VulDB): GCVE-100-179159
CERT Bund: WID-SEC-2025-1550 - Red Hat Enterprise Linux (LZ4): Schwachstelle ermöglicht nicht spezifizierten Angriff

Entryinfo

Created: 07/21/2021 10:37
Updated: 07/16/2025 02:09
Changes: 07/21/2021 10:37 (39), 07/24/2021 19:13 (2), 07/24/2021 19:21 (19), 07/15/2025 13:42 (22), 07/16/2025 02:09 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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