PHP mbstring.func_overload web server denial of service
Published Mar 3, 2009
2.1
LOWCVSS 2.0
EPSS 0.95%
Description
PHP 4.4.4, 5.1.6, and other versions, when running on Apache, allows local users to modify behavior of other sites hosted on the same web server by modifying the mbstring.func_overload setting within .htaccess, which causes this setting to be applied to other virtual hosts on the same server.
Affected products
No data.
No data.
Red Hat Enterprise Linux 3
php-0:4.3.2-51.ent
Fixed · RHSA-2009:0337
Red Hat Enterprise Linux 4
php-0:4.3.9-3.22.15
Fixed · RHSA-2009:0337
Red Hat Enterprise Linux 5
php-0:5.1.6-23.2.el5_3
Fixed · RHSA-2009:0338
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | php-0:4.3.2-51.ent | Fixed | RHSA-2009:0337 |
| Red Hat Enterprise Linux 4 | php-0:4.3.9-3.22.15 | Fixed | RHSA-2009:0337 |
| Red Hat Enterprise Linux 5 | php-0:5.1.6-23.2.el5_3 | Fixed | RHSA-2009:0338 |
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.
AV:L/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.95% (0.00948) | 59.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.95% (0.00948) | 56.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.21% (0.00211) | 41.59th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.59% (0.04587) | 88.93th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.59% (0.04587) | 87.84th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.59% (0.04587) | 74.15th | v2 (v2022.01.01) |
References (21)
- http://bugs.php.net/bug.php?id=27421 x_refsource_CONFIRMExploitVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/34642 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/34830 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35003 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35007 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/35306 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2009/dsa-1789 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2009/01/30/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2009/02/03/3 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2009/02/25/3 mailing-listx_refsource_MLIST
- http://www.redhat.com/support/errata/RHSA-2009-0350.html vendor-advisoryx_refsource_REDHAT
- http://www.securitytracker.com/id?1021979 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2009-0754 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=479272 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-0754
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11035 vdb-entrysignaturex_refsource_OVAL
- https://usn.ubuntu.com/761-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2009-0754
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01451.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01465.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.