Bug 1875241 (CVE-2020-12415) - CVE-2020-12415 Mozilla: AppCache manifest poisoning due to url encoded character processing
Summary: CVE-2020-12415 Mozilla: AppCache manifest poisoning due to url encoded charac...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-12415
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1850728
TreeView+ depends on / blocked
 
Reported: 2020-09-03 06:07 UTC by Doran Moppert
Modified: 2021-10-05 06:43 UTC (History)
4 users (show)

Fixed In Version: thunderbird 78
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Clone Of:
Environment:
Last Closed: 2020-09-03 07:17:44 UTC
Embargoed:

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Description Doran Moppert 2020-09-03 06:07:20 UTC 
When `%2F` was present in a manifest URL, Thunderbird's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-29/#CVE-2020-12415
Comment 1 Doran Moppert 2020-09-03 06:07:32 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Kevin Higgs
Comment 2 Product Security DevOps Team 2020-09-03 07:17:44 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12415
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