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Bug 1270816 (CVE-2015-7758) - CVE-2015-7758 gummi: Use of predictable filenames in /tmp
Summary: CVE-2015-7758 gummi: Use of predictable filenames in /tmp
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2015-7758
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: 1270817
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-10-12 12:49 UTC by Adam Mariš
Modified: 2019-09-29 13:37 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-04-02 09:29:19 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Debian BTS 756432 None None None Never

Description Adam Mariš 2015-10-12 12:49:36 UTC
A vulnerability in gummi was found that uses predictable filenames in /tmp based on basename. When multiple users opens file with the same name, they could write to the same file. Attacker could also create symlinks such that the users could unintentionally overwrite some of their files. Although this case of attack depends on the configuration of /proc/sys/fs/protected_symlinks.

CVE assignment:

http://seclists.org/oss-sec/2015/q4/51

Comment 1 Adam Mariš 2015-10-12 12:49:57 UTC
Created gummi tracking bugs for this issue:

Affects: fedora-all [bug 1270817]

Comment 2 Fabian Affolter 2015-10-30 13:06:51 UTC
Upstream bug report: https://github.com/alexandervdm/gummi/issues/20

Comment 3 Fedora Update System 2016-03-09 15:55:46 UTC
gummi-0.6.6-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-03-09 16:23:15 UTC
gummi-0.6.6-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-03-09 20:12:58 UTC
gummi-0.6.6-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2016-03-09 20:14:19 UTC
gummi-0.6.6-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.


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