php: information leak vulnerability in var_export()
Published Aug 20, 2010
4.3
MEDIUMCVSS 2.0
EPSS 5.00%
Description
The var_export function in PHP 5.2 before 5.2.14 and 5.3 before 5.3.3 flushes the output buffer to the user when certain fatal errors occur, even if display_errors is off, which allows remote attackers to obtain sensitive information by causing the application to exceed limits for memory, execution time, or recursion.
Affected products
No data.
Configuration 2
- 5.0
- 6.0
No data.
Red Hat Enterprise Linux 4
php-0:4.3.9-3.31
Fixed · RHSA-2010:0919
Red Hat Enterprise Linux 5
php-0:5.1.6-27.el5_5.3
Fixed · RHSA-2010:0919
Red Hat Enterprise Linux 6
php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | php-0:4.3.9-3.31 | Fixed | RHSA-2010:0919 |
| Red Hat Enterprise Linux 5 | php-0:5.1.6-27.el5_5.3 | Fixed | RHSA-2010:0919 |
| Red Hat Enterprise Linux 6 | php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue is not planned to be fixed in Red Hat Enterprise Linux 3 due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important and critical impact are addressed. For further information about the Errata Support Policy, visit: http://www.redhat.com/security/updates/errata
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:P/I:N/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 3, 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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 5.00% (0.04996) | 91.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.00% (0.04996) | 91.09th | v5 (v2026.06.15) |
| Jan 20, 2026 | 6.69% (0.06685) | 90.97th | v4 (v2025.03.14) |
| Jul 30, 2025 | 4.86% (0.04864) | 89.14th | v4 (v2025.03.14) |
| Jul 7, 2025 | 7.45% (0.07447) | 91.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.68% (0.08683) | 91.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 12.90% (0.12900) | 90.05th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.68% (0.08683) | 91.82th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.84% (0.01843) | 88.79th | v3 (v2023.03.01) |
| Dec 4, 2023 | 1.84% (0.01843) | 86.93th | v3 (v2023.03.01) |
| May 8, 2023 | 1.32% (0.01323) | 83.93th | v3 (v2023.03.01) |
| Apr 10, 2023 | 1.15% (0.01149) | 82.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.45% (0.01446) | 84.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.25% (0.12248) | 95.30th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.25% (0.12248) | 94.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.25% (0.12248) | 89.34th | v2 (v2022.01.01) |
References (21)
- http://lists.apple.com/archives/security-announce/2010//Aug/msg00003.html vendor-advisoryx_refsource_APPLEMailing ListThird Party Advisory
- http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html vendor-advisoryx_refsource_APPLEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://marc.info/?l=bugtraq&m=130331363227777&w=2 vendor-advisoryx_refsource_HPMailing ListThird Party Advisory
- http://marc.info/?l=bugtraq&m=133469208622507&w=2 vendor-advisoryx_refsource_HPMailing ListThird Party Advisory
- http://secunia.com/advisories/42410 third-party-advisoryx_refsource_SECUNIABroken Link
- http://support.apple.com/kb/HT4312 x_refsource_CONFIRMThird Party Advisory
- http://support.apple.com/kb/HT4435 x_refsource_CONFIRMThird Party Advisory
- http://svn.php.net/viewvc/php/php-src/trunk/ext/standard/tests/general_functions/var_export_error2.phpt?view=log&pathrev=301143 x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2011/dsa-2266 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/07/13/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/07/16/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.php.net/archive/2010.php#id2010-07-22-1 x_refsource_CONFIRMVendor Advisory
- http://www.php.net/archive/2010.php#id2010-07-22-2 x_refsource_CONFIRMVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0919.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.vupen.com/english/advisories/2010/3081 vdb-entryx_refsource_VUPENPermissions Required
- https://access.redhat.com/security/cve/CVE-2010-2531 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=617673 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2010-2531
- https://www.cve.org/CVERecord?id=CVE-2010-2531
Change history (0)
No recorded changes yet.