Redis up to 5.0.13/6.0.15/6.2.5 redis-cli/redis-sentinel Service calloc integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in Redis up to 5.0.13/6.0.15/6.2.5. This issue affects the function calloc of the component redis-cli/redis-sentinel Service. The manipulation leads to integer overflow. This vulnerability is listed as CVE-2021-32762. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Redis up to 5.0.13/6.0.15/6.2.5 and classified as critical. This issue affects the function calloc of the component redis-cli/redis-sentinel Service. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability.

The weakness was presented 10/05/2021 as GHSA-833w-8v3m-8wwr. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-32762 since 05/12/2021. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.0.14, 6.0.16 or 6.2.6 eliminates this vulnerability. Applying the patch 0215324a66af949be39b34be2d55143232c1cb71 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Redis

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 5.0.10
• 5.0.11
• 5.0.12
• 5.0.13
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5

License

• open-source

Website

• Product: https://github.com/redis/redis/

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