Bug 2219234 (CVE-2024-0874) - CVE-2024-0874 coredns: CD bit response is cached and served later
Summary: CVE-2024-0874 coredns: CD bit response is cached and served later
Keywords:
Status: NEW
Alias: CVE-2024-0874
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2255536
Blocks: 2219503
TreeView+ depends on / blocked
 
Reported: 2023-07-03 05:10 UTC by TEJ RATHI
Modified: 2024-02-07 20:30 UTC (History)
12 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in coredns. This issue could lead to invalid cache entries returning due to incorrectly implemented caching.
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Description TEJ RATHI 2023-07-03 05:10:52 UTC 
Coredns mishandling of CI bit: CD bit response is cached and served later

What happened:
If CD bit is set in query, it disables validation at remote server

What you expected to happen:
CD queries may pass, but the same answer must not be served to queries without CD bit set

https://github.com/coredns/coredns/issues/6186
Comment 4 Anten Skrabec 2023-12-21 17:27:35 UTC 
Created golang-github-coredns-corefile-migration tracking bugs for this issue:

Affects: fedora-all [bug 2255536]
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