Bug 963284 - pcre_dfa_exec() crashes on workspace handling by JIT
pcre_dfa_exec() crashes on workspace handling by JIT
Product: Fedora
Classification: Fedora
Component: pcre (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Petr Pisar
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-05-15 11:00 EDT by Petr Pisar
Modified: 2013-08-30 02:09 EDT (History)
3 users (show)

See Also:
Fixed In Version: pcre-8.33-0.3.RC1.fc20
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2013-08-30 02:09:30 EDT
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Reproducer (754 bytes, text/plain)
2013-05-15 11:00 EDT, Petr Pisar
no flags Details

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Description Petr Pisar 2013-05-15 11:00:24 EDT
Created attachment 748362 [details]

Attached code crashes with pcre-8.33-0.2.RC1.fc20.x86_64. Reported to upstream <https://lists.exim.org/lurker/message/20130514.163003.d8983c39.en.html>, possible fix has been posted there.
Comment 1 Petr Pisar 2013-05-16 02:38:14 EDT
Simpler reproducer using pcretest:

# pcretest 
PCRE version 8.33-RC1 2013-04-28

  re> /abcd/
data> abcd\O0\D
Neoprávněný přístup do paměti (SIGSEGV)

Fixed by upstream commit:

commit f4176cfb682170c5e9246949df653c82200d7259
Author: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date:   Wed May 15 16:53:18 2013 +0000

    Fix segfault when pcre_dfa_exec() is called with an output vector of length
    less than 2.
    git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1334 2f5784b3-3f2a-0410-8824-cb99058d5e15
Comment 2 Petr Pisar 2013-05-16 07:14:34 EDT
pcre has been broken since 8.32. Fedoras ≥ 19 are affected.
Comment 3 Fedora Update System 2013-05-16 07:56:12 EDT
pcre-8.32-6.fc19 has been submitted as an update for Fedora 19.
Comment 4 Fedora Update System 2013-05-24 16:51:53 EDT
pcre-8.32-6.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

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