Bug 2556406 (CVE-2026-19630) - CVE-2026-19630 bind: BIND: Denial of Service via unbounded processing of crafted DNS messages
Summary: CVE-2026-19630 bind: BIND: Denial of Service via unbounded processing of craf...
Keywords:
Status: NEW
Alias: CVE-2026-19630
Deadline: 2026-10-21
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2558487 2558488
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-20 19:44 UTC by OSIDB Bzimport
Modified: 2026-10-21 19:19 UTC (History)
18 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-20 19:44:44 UTC 
In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND. A DNS message with a maliciously large number of such structures will cause BIND to consume disproportionate amounts of CPU time and memory during processing.
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