Bug 1479211 (CVE-2017-7794) - CVE-2017-7794 Mozilla: Linux file truncation via sandbox broker (MFSA 2017-18)
Summary: CVE-2017-7794 Mozilla: Linux file truncation via sandbox broker (MFSA 2017-18)
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-7794
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:
Blocks: 1477026
TreeView+ depends on / blocked
 
Reported: 2017-08-08 06:47 UTC by Doran Moppert
Modified: 2021-02-26 00:19 UTC (History)
3 users (show)

Fixed In Version:
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Environment:
Last Closed: 2017-08-09 01:14:53 UTC


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Description Doran Moppert 2017-08-08 06:47:34 UTC
On linux systems, if the content process is compromised, the sandbox broker will allow files to be truncated even though the sandbox explicitly only has read access to the local file system and no write permissions.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7794


Acknowledgements:

Name: the Mozilla project
Upstream: Jann Horn


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