CVE-2007-4767

Description

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.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 2.61% Top 20%

Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory apple.com Vendor Advisory gentoo.org Vendor Advisory apple.com Vendor Advisory mandriva.com Vendor Advisory redhat.com Vendor Advisory novell.com Vendor Advisory gentoo.org Vendor Advisory gentoo.org Vendor Advisory gentoo.org Vendor Advisory debian.org

Affected: n/a n/a

References

Link	Tags
http://secunia.com/advisories/30219	third party advisory
http://secunia.com/advisories/29267	third party advisory
https://usn.ubuntu.com/547-1/	vendor advisory
http://security.gentoo.org/glsa/glsa-200711-30.xml	vendor advisory
http://www.vupen.com/english/advisories/2007/4238	vdb entry
http://www.securityfocus.com/archive/1/483357/100/0/threaded	mailing list
http://www.us-cert.gov/cas/techalerts/TA07-352A.html	third party advisory us government resource
http://secunia.com/advisories/27538	third party advisory
http://www.securityfocus.com/archive/1/483579/100/0/threaded	mailing list
http://secunia.com/advisories/28136	third party advisory
http://www.debian.org/security/2008/dsa-1570	vendor advisory
https://issues.rpath.com/browse/RPL-1738
http://secunia.com/advisories/27773	third party advisory
http://secunia.com/advisories/27697	third party advisory
http://secunia.com/advisories/28406	third party advisory
http://secunia.com/advisories/27554	third party advisory
http://www.vupen.com/english/advisories/2008/0924/references	vdb entry
http://secunia.com/advisories/27543	third party advisory
http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html	mailing list
http://secunia.com/advisories/29420	third party advisory
http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html	vendor advisory
http://security.gentoo.org/glsa/glsa-200805-11.xml	vendor advisory
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html	vendor advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:211	vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html	vendor advisory
http://docs.info.apple.com/article.html?artnum=307179
http://secunia.com/advisories/27741	third party advisory
http://www.vupen.com/english/advisories/2007/3790	vdb entry
http://www.vupen.com/english/advisories/2007/3725	vdb entry
http://www.novell.com/linux/security/advisories/2007_62_pcre.html	vendor advisory
http://www.pcre.org/changelog.txt
http://docs.info.apple.com/article.html?artnum=307562
http://secunia.com/advisories/30155	third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/38277	vdb entry
http://secunia.com/advisories/28720	third party advisory
http://security.gentoo.org/glsa/glsa-200801-02.xml	vendor advisory
http://bugs.gentoo.org/show_bug.cgi?id=198976
http://security.gentoo.org/glsa/glsa-200801-19.xml	vendor advisory
http://security.gentoo.org/glsa/glsa-200801-18.xml	vendor advisory
http://www.debian.org/security/2007/dsa-1399	vendor advisory
http://secunia.com/advisories/28414	third party advisory
http://www.securityfocus.com/bid/26346	vdb entry
http://secunia.com/advisories/30106	third party advisory
http://secunia.com/advisories/28714	third party advisory

Frequently Asked Questions

What is the severity of CVE-2007-4767?: CVE-2007-4767 has been scored as a medium severity vulnerability.
How to fix CVE-2007-4767?: To fix CVE-2007-4767, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-4767 being actively exploited in the wild?: It is possible that CVE-2007-4767 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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