MEDIUM
php: hang on numeric value 2.2250738585072011e-308 with x87 fpu
Published Jan 11, 2011
5.0
MEDIUMCVSS 2.0
EPSS 15.10%
Description
strtod.c, as used in the zend_strtod function in PHP 5.2 before 5.2.17 and 5.3 before 5.3.5, and other products, allows context-dependent attackers to cause a denial of service (infinite loop) via a certain floating-point value in scientific notation, which is not properly handled in x87 FPU registers, as demonstrated using 2.2250738585072011e-308.
Affected products
No data.
Configuration 1
OR
- 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
- 5.2.15
- 5.2.16
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-0:5.3.2-6.el6_0.1
Fixed · RHSA-2011:0195
Red Hat Enterprise Linux 4
php
Not affected
Red Hat Enterprise Linux 5
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-0:5.3.2-6.el6_0.1 | Fixed | RHSA-2011:0195 |
| Red Hat Enterprise Linux 4 | php | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue leads to a temporary denial of service (high CPU consumption) when a PHP script handles numeric values from untrusted user input. It does not affect the versions of PHP as shipped with Red Hat Enterprise Linux 3, 4 or 5. 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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
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.
15.10% 0.15103
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.15103
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 (51 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.10% (0.15103) | 96.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.10% (0.15103) | 96.30th | v5 (v2026.06.15) |
| May 16, 2026 | 20.98% (0.20977) | 95.70th | v4 (v2025.03.14) |
| May 15, 2026 | 16.99% (0.16994) | 95.04th | v4 (v2025.03.14) |
| Mar 4, 2026 | 19.43% (0.19431) | 95.26th | v4 (v2025.03.14) |
| Mar 1, 2026 | 14.98% (0.14984) | 94.46th | v4 (v2025.03.14) |
| Feb 4, 2026 | 19.43% (0.19431) | 95.21th | v4 (v2025.03.14) |
| Feb 1, 2026 | 14.98% (0.14984) | 94.41th | v4 (v2025.03.14) |
| Jan 4, 2026 | 19.43% (0.19431) | 95.18th | v4 (v2025.03.14) |
| Jan 1, 2026 | 14.98% (0.14984) | 94.38th | v4 (v2025.03.14) |
| Dec 28, 2025 | 19.43% (0.19431) | 95.18th | v4 (v2025.03.14) |
| Dec 27, 2025 | 25.63% (0.25634) | 96.07th | v4 (v2025.03.14) |
| Dec 4, 2025 | 19.43% (0.19431) | 95.15th | v4 (v2025.03.14) |
| Dec 1, 2025 | 14.98% (0.14984) | 94.33th | v4 (v2025.03.14) |
| Nov 27, 2025 | 19.43% (0.19431) | 95.15th | v4 (v2025.03.14) |
| Nov 4, 2025 | 21.55% (0.21545) | 95.48th | v4 (v2025.03.14) |
| Nov 1, 2025 | 16.74% (0.16738) | 94.71th | v4 (v2025.03.14) |
| Oct 28, 2025 | 21.55% (0.21545) | 95.47th | v4 (v2025.03.14) |
| Oct 27, 2025 | 28.14% (0.28138) | 96.27th | v4 (v2025.03.14) |
| Oct 4, 2025 | 21.55% (0.21545) | 95.52th | v4 (v2025.03.14) |
| Oct 1, 2025 | 16.74% (0.16738) | 94.73th | v4 (v2025.03.14) |
| Sep 20, 2025 | 28.14% (0.28138) | 96.32th | v4 (v2025.03.14) |
| Sep 4, 2025 | 29.51% (0.29506) | 96.46th | v4 (v2025.03.14) |
| Sep 1, 2025 | 23.57% (0.23573) | 95.80th | v4 (v2025.03.14) |
| Aug 4, 2025 | 29.51% (0.29506) | 96.42th | v4 (v2025.03.14) |
| Aug 1, 2025 | 23.57% (0.23573) | 95.79th | v4 (v2025.03.14) |
| Jul 30, 2025 | 29.51% (0.29506) | 96.42th | v4 (v2025.03.14) |
| Jul 4, 2025 | 22.72% (0.22717) | 95.59th | v4 (v2025.03.14) |
| Jul 1, 2025 | 17.72% (0.17722) | 94.84th | v4 (v2025.03.14) |
| Jun 4, 2025 | 22.72% (0.22717) | 95.55th | v4 (v2025.03.14) |
| Jun 1, 2025 | 17.72% (0.17722) | 94.79th | v4 (v2025.03.14) |
| May 30, 2025 | 22.72% (0.22717) | 95.54th | v4 (v2025.03.14) |
| May 4, 2025 | 19.99% (0.19993) | 95.11th | v4 (v2025.03.14) |
| May 1, 2025 | 15.45% (0.15448) | 94.29th | v4 (v2025.03.14) |
| Apr 12, 2025 | 19.49% (0.19489) | 94.93th | v4 (v2025.03.14) |
| Apr 11, 2025 | 15.03% (0.15032) | 94.01th | v4 (v2025.03.14) |
| Apr 8, 2025 | 19.49% (0.19489) | 94.93th | v4 (v2025.03.14) |
| Apr 7, 2025 | 15.03% (0.15032) | 94.00th | v4 (v2025.03.14) |
| Apr 3, 2025 | 19.49% (0.19489) | 94.92th | v4 (v2025.03.14) |
| Apr 2, 2025 | 15.03% (0.15032) | 94.00th | v4 (v2025.03.14) |
| Mar 31, 2025 | 19.49% (0.19489) | 94.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 15.03% (0.15032) | 93.99th | v4 (v2025.03.14) |
| Mar 26, 2025 | 19.49% (0.19489) | 94.86th | v4 (v2025.03.14) |
| Mar 25, 2025 | 15.03% (0.15032) | 93.94th | v4 (v2025.03.14) |
| Mar 19, 2025 | 19.49% (0.19489) | 94.69th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.75% (0.17747) | 94.61th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.12% (0.02116) | 89.62th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.12% (0.02116) | 87.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.57% (0.12567) | 95.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.57% (0.12567) | 95.18th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.57% (0.12567) | 90.03th | v2 (v2022.01.01) |
Weaknesses (1)
References (32)
- http://bugs.php.net/53632 x_refsource_CONFIRMExploit
- http://hal.archives-ouvertes.fr/docs/00/28/14/29/PDF/floating-point-article.pdf x_refsource_MISC
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053333.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053355.html vendor-advisoryx_refsource_FEDORA
- http://marc.info/?l=bugtraq&m=133226187115472&w=2 vendor-advisoryx_refsource_HP
- 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/42843 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43051 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/43189 third-party-advisoryx_refsource_SECUNIA
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.484686 vendor-advisoryx_refsource_SLACKWARE
- http://support.apple.com/kb/HT5002 x_refsource_CONFIRM
- http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/Zend/zend_strtod.c?r1=266327&r2=307095&pathrev=307095 x_refsource_MISCPatch
- http://www.exploringbinary.com/php-hangs-on-numeric-value-2-2250738585072011e-308/ x_refsource_MISC
- http://www.openwall.com/lists/oss-security/2011/01/05/2 mailing-listx_refsource_MLISTExploitPatch
- http://www.openwall.com/lists/oss-security/2011/01/05/8 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2011/01/06/5 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2023/05/14/3
- http://www.redhat.com/support/errata/RHSA-2011-0195.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2011-0196.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/45668 vdb-entryx_refsource_BIDExploit
- http://www.ubuntu.com/usn/USN-1042-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2011/0060 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0066 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0077 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0198 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-4645 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=667806 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64470 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2010-4645
- https://www.cve.org/CVERecord?id=CVE-2010-4645
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jan 11, 2011
Updated Feb 13, 2025
Reserved Jan 3, 2011
Link CVE-2010-4645
CISA Vulnrichment
Updated n/a