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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2023-4236

named may terminate unexpectedly under high DNS-over-TLS query load

Description

A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load. This issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ISC BIND 9

Default version status: unaffected

  • 9.18.0 to ≤ 9.18.18affected
  • 9.18.11-S1 to ≤ 9.18.18-S1affected

References