MEDIUM
pcre miscalculation of memory requirements if options are changed during pattern compilation
Published Nov 15, 2007
4.3
MEDIUMCVSS 2.0
EPSS 1.67%
Description
Perl-Compatible Regular Expression (PCRE) library before 7.0 does not properly calculate the amount of memory needed for a compiled regular expression pattern when the (1) -x or (2) -i UTF-8 options change within the pattern, which allows context-dependent attackers to cause a denial of service (PCRE or glibc crash) via crafted regular expressions.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
pcre-0:4.5-4.el4_6.6
Fixed · RHSA-2007:1068
Red Hat Enterprise Linux 5
pcre-0:6.6-2.el5_1.7
Fixed · RHSA-2007:1059
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | pcre-0:4.5-4.el4_6.6 | Fixed | RHSA-2007:1068 |
| Red Hat Enterprise Linux 5 | pcre-0:6.6-2.el5_1.7 | Fixed | RHSA-2007:1059 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.67% 0.01666
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01666
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.67% (0.01666) | 75.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.67% (0.01666) | 73.62th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.48% (0.02478) | 83.88th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.64% (0.03644) | 79.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.59% (0.01590) | 80.37th | v4 (v2025.03.14) |
| Dec 12, 2024 | 5.35% (0.05351) | 93.39th | v3 (v2023.03.01) |
| Oct 26, 2024 | 5.35% (0.05351) | 93.28th | v3 (v2023.03.01) |
| Sep 18, 2024 | 4.11% (0.04108) | 92.33th | v3 (v2023.03.01) |
| Jul 4, 2024 | 2.02% (0.02022) | 88.99th | v3 (v2023.03.01) |
| Apr 18, 2024 | 1.44% (0.01442) | 86.43th | v3 (v2023.03.01) |
| Nov 21, 2023 | 1.34% (0.01345) | 84.62th | v3 (v2023.03.01) |
| Apr 20, 2023 | 0.98% (0.00976) | 81.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.01% (0.01009) | 81.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
Weaknesses (1)
References (31)
- http://bugs.gentoo.org/show_bug.cgi?id=198976 x_refsource_MISC
- http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/27741 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27773 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28041 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28406 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28414 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28658 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28714 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28720 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30106 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30155 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30219 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200711-30.xml vendor-advisoryx_refsource_GENTOO
- http://security.gentoo.org/glsa/glsa-200801-02.xml vendor-advisoryx_refsource_GENTOO
- http://security.gentoo.org/glsa/glsa-200801-18.xml vendor-advisoryx_refsource_GENTOO
- http://security.gentoo.org/glsa/glsa-200801-19.xml vendor-advisoryx_refsource_GENTOO
- http://security.gentoo.org/glsa/glsa-200805-11.xml vendor-advisoryx_refsource_GENTOO
- http://support.avaya.com/elmodocs2/security/ASA-2007-505.htm x_refsource_CONFIRM
- http://www.debian.org/security/2008/dsa-1570 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:030 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2007_62_pcre.html vendor-advisoryx_refsource_SUSE
- http://www.pcre.org/changelog.txt x_refsource_CONFIRM
- http://www.redhat.com/support/errata/RHSA-2007-1059.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-1068.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/26550 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2006-7230 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=384801 x_refsource_MISCIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2006-7230
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10911 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2006-7230
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 15, 2007
Updated Aug 7, 2024
Reserved Nov 15, 2007
Link CVE-2006-7230
CISA Vulnrichment
Updated n/a