CVE-2023-26438

CVSS 3.1 Score 4.3 of 10 (medium)

Details

Published Aug 2, 2023
Updated: Jan 12, 2024
CWE ID 918
CWE ID 367

Summary

CVE-2023-26438 is a vulnerability that affects external service lookups for multiple protocols. The vulnerability involves a time-of-check/time-of-use weakness in the JDK DNS cache, allowing attackers to bypass network deny-lists by injecting configuration during the cache expiry. This weakness can be exploited to discover restricted network infrastructure and service availability. The affected products include r_8QfP, r_8QfS, and tz2RII. To remediate this vulnerability, improvements have been made to include deny-lists during both the check of connection data and its use. No publicly available exploits are known at this time. The vulnerability has a base severity of MEDIUM, with low privileges required and no user interaction necessary.

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