php: use after free in opcache extension
Published Mar 30, 2015
7.5
HIGHCVSS 2.0
EPSS 8.65%
Description
Use-after-free vulnerability in the _zend_shared_memdup function in zend_shared_alloc.c in the OPcache extension in PHP through 5.6.7 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Affected products
No data.
No data.
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6
php55-0:2.0-1.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 6
php55-php-0:5.5.21-2.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php55-0:2.0-1.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
php55-php-0:5.5.21-2.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-0:2.0-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-php-0:5.4.40-1.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php54-php-pecl-zendopcache-0:7.0.4-3.el6
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php55-0:2.0-1.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
php55-php-0:5.5.21-2.el6
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-0:2.0-1.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-php-0:5.4.40-1.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
php54-php-pecl-zendopcache-0:7.0.4-3.el7
Fixed · RHSA-2015:1066
Red Hat Software Collections for Red Hat Enterprise Linux 7
php55-0:2.0-1.el7
Fixed · RHSA-2015:1053
Red Hat Software Collections for Red Hat Enterprise Linux 7
php55-php-0:5.5.21-2.el7
Fixed · RHSA-2015:1053
Red Hat Enterprise Linux 5
php
Not affected
Red Hat Enterprise Linux 5
php53
Not affected
Red Hat Enterprise Linux 6
php
Not affected
Red Hat Enterprise Linux 7
php
Not affected
Red Hat Software Collections
php54-php
Not affected
Red Hat Software Collections
php54-php-pecl-zendopcache
Affected
Red Hat Software Collections
php55-php
Affected
Red Hat Software Collections
rh-php56-php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php55-0:2.0-1.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | php55-php-0:5.5.21-2.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php55-0:2.0-1.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS | php55-php-0:5.5.21-2.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-0:2.0-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-php-0:5.4.40-1.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php54-php-pecl-zendopcache-0:7.0.4-3.el6 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php55-0:2.0-1.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | php55-php-0:5.5.21-2.el6 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-0:2.0-1.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-php-0:5.4.40-1.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php54-php-pecl-zendopcache-0:7.0.4-3.el7 | Fixed | RHSA-2015:1066 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php55-0:2.0-1.el7 | Fixed | RHSA-2015:1053 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | php55-php-0:5.5.21-2.el7 | Fixed | RHSA-2015:1053 |
| 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 |
| Red Hat Enterprise Linux 7 | php | Not affected | n/a |
| Red Hat Software Collections | php54-php | Not affected | n/a |
| Red Hat Software Collections | php54-php-pecl-zendopcache | Affected | n/a |
| Red Hat Software Collections | php55-php | Affected | n/a |
| Red Hat Software Collections | rh-php56-php | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of PHP as shipped with Red Hat Enterprise Linux 5, 6 and 7.
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:L/Au:N/C:P/I:P/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 2, 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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 8.65% (0.08646) | 94.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.71% (0.08707) | 94.44th | v5 (v2026.06.15) |
| May 24, 2026 | 12.03% (0.12030) | 93.87th | v4 (v2025.03.14) |
| Dec 28, 2025 | 19.13% (0.19134) | 95.14th | v4 (v2025.03.14) |
| Dec 27, 2025 | 13.00% (0.13003) | 93.89th | v4 (v2025.03.14) |
| Dec 13, 2025 | 19.13% (0.19134) | 95.13th | v4 (v2025.03.14) |
| Oct 28, 2025 | 17.77% (0.17768) | 94.82th | v4 (v2025.03.14) |
| Oct 27, 2025 | 11.99% (0.11993) | 93.49th | v4 (v2025.03.14) |
| Oct 1, 2025 | 17.77% (0.17768) | 94.92th | v4 (v2025.03.14) |
| Sep 11, 2025 | 11.99% (0.11993) | 93.53th | v4 (v2025.03.14) |
| Jul 30, 2025 | 7.24% (0.07239) | 91.23th | v4 (v2025.03.14) |
| May 30, 2025 | 11.08% (0.11084) | 93.08th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.77% (0.17768) | 94.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 22.06% (0.22060) | 93.15th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.77% (0.17768) | 94.62th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.03% (0.02026) | 88.62th | v3 (v2023.03.01) |
| Dec 12, 2024 | 14.28% (0.14279) | 95.92th | v3 (v2023.03.01) |
| Dec 5, 2023 | 14.53% (0.14532) | 95.20th | v3 (v2023.03.01) |
| Nov 8, 2023 | 10.81% (0.10811) | 94.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.93% (0.06930) | 92.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (17)
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=777c39f4042327eac4b63c7ee87dc1c7a09a3115 x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html vendor-advisoryx_refsource_APPLEMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2015/01/24/9 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1053.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1066.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:079 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html x_refsource_CONFIRMThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/71929 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-1351 Vendor Advisory
- https://bugs.php.net/bug.php?id=68677 x_refsource_CONFIRMExploit
- https://bugzilla.redhat.com/show_bug.cgi?id=1185900 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-1351
- https://security.gentoo.org/glsa/201606-10 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://support.apple.com/HT205267 x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-1351
Change history (0)
No recorded changes yet.