CVE-2021-29477: fedoraproject fedora Integer Overflow or Wraparound

Vulnerability summary

CVE-2021-29477 is a high (CVSS 8.8) Integer Overflow or Wraparound vulnerability in fedoraproject fedora. EPSS estimates a 4.00% chance of exploitation in the next 30 days, higher than 90.4% of scored vulnerabilities.

Timeline

1. 04-05-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer could be exploited using the `STRALGO LCS` command to corrupt the heap and potentially result with remote code execution. The problem is fixed in version 6.2.3 and 6.0.13. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the `STRALGO LCS` command.

• CWE-190Integer Overflow or WraparoundThe 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 occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.