Redis up to 6.0.16/6.2.8/7.0.7 integer overflow

Summaryinfo

A vulnerability labeled as critical has been found in Redis up to 6.0.16/6.2.8/7.0.7. This vulnerability affects unknown code. Such manipulation leads to integer overflow. This vulnerability is listed as CVE-2022-35977. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Redis up to 6.0.16/6.2.8/7.0.7. It has been rated as critical. Affected by this issue is an unknown part. 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 availability. CVE summarizes:

Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted `SETRANGE` and `SORT(_RO)` commands can trigger an integer overflow, resulting with Redis attempting to allocate impossible amounts of memory and abort with an out-of-memory (OOM) panic. The problem is fixed in Redis versions 7.0.8, 6.2.9 and 6.0.17. Users are advised to upgrade. There are no known workarounds for this vulnerability.

The weakness was presented 01/21/2023 as GHSA-mrcw-fhw9-fj8j. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-35977 since 07/15/2022. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211963 (Debian dla-3973 : redis - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.17, 6.2.9 or 7.0.8 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 1ec82e6e97e1db06a72ca505f9fbf6b981f31ef7 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.

The vulnerability is also documented in the vulnerability database at Tenable (211963). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Redis

Version

• 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
• 6.0.16
• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4
• 6.2.5
• 6.2.6
• 6.2.7
• 6.2.8
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7

License

• open-source

Website

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

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Once again VulDB remains the best source for vulnerability data.

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