php: DoS in filter_var() via long email string
Published Oct 25, 2010
4.3
MEDIUMCVSS 2.0
EPSS 3.09%
Description
Stack consumption vulnerability in the filter_var function in PHP 5.2.x through 5.2.14 and 5.3.x through 5.3.3, when FILTER_VALIDATE_EMAIL mode is used, allows remote attackers to cause a denial of service (memory consumption and application crash) via a long e-mail address string.
Affected products
No data.
- 5.2.0
- 5.2.1
- 5.2.2
- 5.2.3
- 5.2.4
- 5.2.5
- 5.2.6
- 5.2.7
- 5.2.8
- 5.2.9
- 5.2.10
- 5.2.11
- 5.2.12
- 5.2.13
- 5.2.14
- 5.3.0
- 5.3.1
- 5.3.2
- 5.3.3
No data.
Red Hat Enterprise Linux 5
php53-0:5.3.3-1.el5_6.1
Fixed · RHSA-2011:0196
Red Hat Enterprise Linux 6
php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | php53-0:5.3.3-1.el5_6.1 | Fixed | RHSA-2011:0196 |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of php packages as shipped with Red Hat Enterprise Linux 4, 5 or 6. It did affect the PHP 5.3 (php53) package on Red Hat Enterprise Linux 5.
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:N/AC:M/Au:N/C:N/I:N/A:P
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.09% (0.03091) | 87.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.09% (0.03091) | 85.97th | v5 (v2026.06.15) |
| Jul 30, 2025 | 3.09% (0.03095) | 86.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.96% (0.05955) | 89.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.96% (0.08964) | 87.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.96% (0.05955) | 89.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 7.84% (0.07840) | 94.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.84% (0.07840) | 93.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (24)
- http://bugs.php.net/bug.php?id=52929 x_refsource_CONFIRMExploit
- http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=133469208622507&w=2 vendor-advisoryx_refsource_HP
- http://secunia.com/advisories/42812 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43189 third-party-advisoryx_refsource_SECUNIA
- http://support.apple.com/kb/HT4581 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:218 vendor-advisoryx_refsource_MANDRIVA
- http://www.php.net/ChangeLog-5.php x_refsource_CONFIRM
- http://www.php.net/archive/2010.php#id2010-12-10-1 x_refsource_CONFIRM
- http://www.php.net/releases/5_2_15.php x_refsource_CONFIRM
- http://www.php.net/releases/5_3_4.php x_refsource_CONFIRM
- http://www.redhat.com/support/errata/RHSA-2011-0196.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/43926 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1042-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2011/0020 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0021 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0077 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-3710 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=646684 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-3710
- https://www.cve.org/CVERecord?id=CVE-2010-3710
Change history (0)
No recorded changes yet.