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Fedora 24 Security Update: pcre Buffer Overflow Remediation

fedora
Calendar Grey May 10, 2017
Scroller Fedora
Enhance system security by applying the essential patch for the pcre library on Fedora 24. This update fixes vital Unicode issues and mitigates buffer overflow risks
This release fixes a crash when finding a Unicode property for a character with a code point greater than 0x10ffff in UTF-32 library while UTF mode is disabled and JIT mde enabled

Summary

PCRE, Perl-compatible regular expression, library has its own native API, but

a set of wrapper functions that are based on the POSIX API are also supplied

in the libpcreposix library. Note that this just provides a POSIX calling

interface to PCRE: the regular expressions themselves still follow Perl syntax

and semantics. Detailed change log is provided by pcre-doc package.

This release fixes a crash when finding a Unicode property for a character with

a code point greater than 0x10ffff in UTF-32 library while UTF mode is disabled

and JIT mde enabled. It also fixes a buffer overlflow in pcretest tool when

copying a string in UTF-32 mode.

[ 1 ] Bug #1434504 - CVE-2017-7186 pcre: Invalid Unicode property lookup (8.41/7, 10.24/2)

https://bugzilla.redhat.com/show_bug.cgi?id=1434504

su -c 'dnf upgrade pcre' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

package-announce mailing list -- package-announce@lists.fedoraproject.org

To unsubscribe send an email to package-announce-leave@lists.fedoraproject.org

Change Log

References

Update Instructions

Severity
critical
Lowest
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Medium
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Critical

Product: Fedora 24
Version: 8.40
Release: 7.fc24
URL:
Summary: Perl-compatible regular expression library

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