When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
The CVSS severity warrants an early asset and exposure review.
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
Confirm exposure before applying a vendor-supported change.
Confirm that Go standard library net, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 and an affected version are present.
Combine exploitation signals with asset exposure and business criticality.
Follow the vendor advisory or supported update path and preserve rollback options.
Recheck the version, service health, access paths, and relevant logs.
