| Package | Affected versions | Patched versions |
|---|---|---|
| ircu | ≤ 2.10.12.05 |
ircu 2.10.12.05 and earlier allows remote attackers to discover the hidden IP address of arbitrary +x users via a series of /silence commands with (1) CIDR mask arguments or (2) certain other arguments that represent groups of IP addresses, then monitoring CTCP ping replies.
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