Bug 1354386 (CVE-2016-6185) - CVE-2016-6185 perl: XSLoader loads relative paths not included in @INC
Summary: CVE-2016-6185 perl: XSLoader loads relative paths not included in @INC
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2016-6185
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: 1353238 1354387
Blocks: 1354390
TreeView+ depends on / blocked
 
Reported: 2016-07-11 08:29 UTC by Adam Mariš
Modified: 2019-09-29 13:52 UTC (History)
16 users (show)

Fixed In Version: perl 5.25.3
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2017-08-04 11:29:43 UTC


Attachments (Terms of Use)

Description Adam Mariš 2016-07-11 08:29:31 UTC
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 08:30:06 UTC
Created perl tracking bugs for this issue:

Affects: fedora-all [bug 1354387]

Comment 2 Fedora Update System 2016-07-15 18:21:23 UTC
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 18:24:35 UTC
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 20:52:42 UTC
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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