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Bug 1354386 - (CVE-2016-6185) CVE-2016-6185 perl: XSLoader loads relative paths not included in @INC
CVE-2016-6185 perl: XSLoader loads relative paths not included in @INC
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20160630,repor...
: Security
Depends On: 1353238 1354387
Blocks: 1354390
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Reported: 2016-07-11 04:29 EDT by Adam Mariš
Modified: 2017-08-04 07:30 EDT (History)
16 users (show)

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Fixed In Version: perl 5.25.3
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Last Closed: 2017-08-04 07:29:43 EDT
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Description Adam Mariš 2016-07-11 04:29:31 EDT 
An arbitrary code execution can be achieved if loading code from untrusted current working directory despite the '.' is removed from @INC. Vulnerability is in XSLoader that uses caller() information to locate .so file to load. If malicious attacker creates directory named `(eval 1)` with malicious binary file in it, it will be loaded if the package calling XSLoader is in parent directory.

CVE assignment:

http://seclists.org/oss-sec/2016/q3/28

Upstream bug:

https://rt.cpan.org/Public/Bug/Display.html?id=115808

Upstream patch:

http://perl5.git.perl.org/perl.git/commitdiff/08e3451d7
Comment 1 Adam Mariš 2016-07-11 04:30:06 EDT 
Created perl tracking bugs for this issue:

Affects: fedora-all [bug 1354387]
Comment 2 Fedora Update System 2016-07-15 14:21:23 EDT 
perl-5.20.3-332.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2016-07-18 14:24:35 EDT 
perl-5.22.2-361.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2016-07-18 16:52:42 EDT 
perl-5.22.2-353.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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