Bug 1831290 (CVE-2020-10870) - CVE-2020-10870 zim: predictable temporary directory names allows users to cause denial of service
Summary: CVE-2020-10870 zim: predictable temporary directory names allows users to cau...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-10870
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1831291
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-05-04 19:43 UTC by msiddiqu
Modified: 2020-05-04 22:31 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2020-05-04 22:31:48 UTC
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Description msiddiqu 2020-05-04 19:43:20 UTC 
Zim through 0.72.1 creates temporary directories with predictable names. A malicious user could predict and create Zim's temporary directories and prevent other users from being able to start Zim, resulting in a denial of service.

Upstream issue:

https://github.com/zim-desktop-wiki/zim-desktop-wiki/issues/1028

Upstream patch: 

https://github.com/mssalvatore/zim-desktop-wiki/commit/745bb80f081ee99569df57be30ed17e666510040
Comment 1 msiddiqu 2020-05-04 19:44:01 UTC 
Created zimlib tracking bugs for this issue:

Affects: fedora-all [bug 1831291]
Comment 3 Product Security DevOps Team 2020-05-04 22:31:48 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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