CVE-2007-4767
First published: Wed Nov 07 2007(Updated: )
Perl-Compatible Regular Expression (PCRE) library before 7.3 does not properly compute the length of (1) a \p sequence, (2) a \P sequence, or (3) a \P{x} sequence, which allows context-dependent attackers to cause a denial of service (infinite loop or crash) or execute arbitrary code.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PCRE (Perl Compatible Regular Expressions) | <=6.0 | |
| PCRE (Perl Compatible Regular Expressions) | <=6.1 | |
| PCRE (Perl Compatible Regular Expressions) | <=7.3 |
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Reference Links
- http://www.pcre.org/changelog.txt
- http://www.debian.org/security/2007/dsa-1399
- http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html
- https://issues.rpath.com/browse/RPL-1738
- http://security.gentoo.org/glsa/glsa-200711-30.xml
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:211
- http://www.novell.com/linux/security/advisories/2007_62_pcre.html
- http://www.securityfocus.com/bid/26346
- http://secunia.com/advisories/27538
- http://secunia.com/advisories/27543
- http://secunia.com/advisories/27554
- http://secunia.com/advisories/27741
- http://secunia.com/advisories/27773
- http://secunia.com/advisories/27697
- http://docs.info.apple.com/article.html?artnum=307179
- http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html
- http://www.us-cert.gov/cas/techalerts/TA07-352A.html
- http://secunia.com/advisories/28136
- http://bugs.gentoo.org/show_bug.cgi?id=198976
- http://security.gentoo.org/glsa/glsa-200801-02.xml
- http://secunia.com/advisories/28406
- http://secunia.com/advisories/28414
- http://security.gentoo.org/glsa/glsa-200801-18.xml
- http://security.gentoo.org/glsa/glsa-200801-19.xml
- http://secunia.com/advisories/28714
- http://secunia.com/advisories/28720
- https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html
- http://secunia.com/advisories/29267
- http://docs.info.apple.com/article.html?artnum=307562
- http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
- http://secunia.com/advisories/29420
- http://security.gentoo.org/glsa/glsa-200805-11.xml
- http://secunia.com/advisories/30155
- http://secunia.com/advisories/30219
- http://secunia.com/advisories/30106
- http://www.debian.org/security/2008/dsa-1570
- http://www.vupen.com/english/advisories/2007/4238
- http://www.vupen.com/english/advisories/2007/3790
- http://www.vupen.com/english/advisories/2007/3725
- http://www.vupen.com/english/advisories/2008/0924/references
- https://exchange.xforce.ibmcloud.com/vulnerabilities/38277
- https://usn.ubuntu.com/547-1/
- http://www.securityfocus.com/archive/1/483579/100/0/threaded
- http://www.securityfocus.com/archive/1/483357/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2007-4767?
CVE-2007-4767 has a severity rating that allows for potential denial of service or arbitrary code execution.
How do I fix CVE-2007-4767?
To fix CVE-2007-4767, upgrade the PCRE library to version 7.4 or later.
What causes the vulnerability CVE-2007-4767?
CVE-2007-4767 is caused by improper length computations in PCRE sequences that can lead to infinite loops or crashes.
Is CVE-2007-4767 present in all PCRE versions?
CVE-2007-4767 affects PCRE library versions prior to 7.4.
Can CVE-2007-4767 be exploited remotely?
Yes, CVE-2007-4767 can be exploited by context-dependent attackers, possibly resulting in remote exploits.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/pcre
- canonical/pcre (perl compatible regular expressions)
- version/pcre (perl compatible regular expressions)/6.0
- version/pcre (perl compatible regular expressions)/6.1
- version/pcre (perl compatible regular expressions)/7.3