php: Crash by retrieving string value of a variable, when high precision used
Published Mar 20, 2011
4.3
MEDIUMCVSS 2.0
EPSS 2.80%
Description
Buffer overflow in the strval function in PHP before 5.3.6, when the precision configuration option has a large value, might allow context-dependent attackers to cause a denial of service (application crash) via a small numerical value in the argument.
Affected products
No data.
- ≤ 5.3.5
- 1.0
- 2.0
- 2.0b10
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.0.6
- 4.0.7
- 4.1.0
- 4.1.1
- 4.1.2
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.3.0
- 4.3.1
- 4.3.2
- 4.3.3
- 4.3.4
- 4.3.5
- 4.3.6
- 4.3.7
- 4.3.8
- 4.3.9
- 4.3.10
- 4.3.11
- 4.4.0
- 4.4.1
- 4.4.2
- 4.4.3
- 4.4.4
- 4.4.5
- 4.4.6
- 4.4.7
- 4.4.8
- 4.4.9
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.1.0
- 5.1.1
- 5.1.2
- 5.1.3
- 5.1.4
- 5.1.5
- 5.1.6
- 5.2.0
- 5.2.1
- 5.2.2
- 5.2.3
- 5.2.4
- 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
- 5.2.17
- 5.3.0
- 5.3.1
- 5.3.2
- 5.3.3
- 5.3.4
No data.
Red Hat Enterprise Linux 4
php
Not affected
Red Hat Enterprise Linux 5
php
Not affected
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | php | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php | Not affected | n/a |
| Red Hat Enterprise Linux 5 | php53 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat does not consider this flaw to be a security issue. It is improbable that a script would accept untrusted user input or unvalidated script input data to the strval() function. Input passed to the functions is therefore under the full control of the script author and no trust boundary is crossed. As well, an administrator would have to excessively increase the precision settings in order to trigger this flaw.
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 | 2.80% (0.02801) | 85.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.80% (0.02801) | 84.56th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.92% (0.00920) | 74.35th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.23% (0.02227) | 89.92th | v3 (v2023.03.01) |
| Nov 7, 2023 | 2.23% (0.02227) | 88.31th | v3 (v2023.03.01) |
| Apr 7, 2023 | 2.01% (0.02012) | 87.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.98% (0.01982) | 86.96th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
References (12)
- http://bugs.php.net/bug.php?id=54055 x_refsource_CONFIRMExploit
- http://marc.info/?l=bugtraq&m=133469208622507&w=2 vendor-advisoryx_refsource_HP
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:052 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:053 vendor-advisoryx_refsource_MANDRIVA
- http://www.php.net/ChangeLog-5.php x_refsource_CONFIRM
- http://www.php.net/archive/2011.php x_refsource_CONFIRM
- http://www.php.net/releases/5_3_6.php x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2011/0744 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2011-1464 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=689365 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-1464
- https://www.cve.org/CVERecord?id=CVE-2011-1464
| Link | Providers | Tags |
|---|---|---|
| http://bugs.php.net/bug.php?id=54055 | x_refsource_CONFIRMExploit | |
| http://marc.info/?l=bugtraq&m=133469208622507&w=2 | vendor-advisoryx_refsource_HP | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2011:052 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2011:053 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.php.net/ChangeLog-5.php | x_refsource_CONFIRM | |
| http://www.php.net/archive/2011.php | x_refsource_CONFIRM | |
| http://www.php.net/releases/5_3_6.php | x_refsource_CONFIRM | |
| http://www.vupen.com/english/advisories/2011/0744 | vdb-entryx_refsource_VUPEN | |
| https://access.redhat.com/security/cve/CVE-2011-1464 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=689365 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-1464 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-1464 |
Change history (0)
No recorded changes yet.