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Gentoo Linux Security Advisory GLSA 200807-03 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: PCRE: Buffer overflow |
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Date: July 07, 2008 |
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Bugs: #228091, #230039 |
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ID: 200807-03 |
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Synopsis |
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======== |
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|
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A buffer overflow vulnerability has been discovered in PCRE, allowing |
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for the execution of arbitrary code and a Denial of Service. |
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Background |
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========== |
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|
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PCRE is a Perl-compatible regular expression library. GLib includes a |
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copy of PCRE. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/libpcre < 7.7-r1 >= 7.7-r1 |
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2 dev-libs/glib < 2.16.3-r1 >= 2.16.3-r1 |
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< 2.14.0 |
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------------------------------------------------------------------- |
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2 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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Tavis Ormandy of the Google Security team reported a heap-based buffer |
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overflow when compiling regular expression patterns containing |
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"Internal Option Settings" such as "(?i)". |
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|
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Impact |
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====== |
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|
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A remote attacker could exploit this vulnerability by sending a |
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specially crafted regular expression to an application making use of |
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the PCRE library, which could possibly lead to the execution of |
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arbitrary code or a Denial of Service. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All PCRE users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/libpcre-7.7-r1" |
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All GLib users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/glib-2.16.3-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2008-2371 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2371 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200807-03.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2008 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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