php: use after free vulnerability in unserialize() with DateTimeZone
Published Mar 30, 2015
7.5
HIGHCVSS 2.0
EPSS 43.81%
Description
Multiple use-after-free vulnerabilities in ext/date/php_date.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 allow remote attackers to execute arbitrary code via crafted serialized input containing a (1) R or (2) r type specifier in (a) DateTimeZone data handled by the php_date_timezone_initialize_from_hash function or (b) DateTime data handled by the php_date_initialize_from_hash function.
Affected products
No data.
- ≤ 5.4.37
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.0
- 5.5.1
- 5.5.2
- 5.5.3
- 5.5.4
- 5.5.5
- 5.5.6
- 5.5.7
- 5.5.8
- 5.5.9
- 5.5.10
- 5.5.11
- 5.5.12
- 5.5.13
- 5.5.14
- 5.5.15
- 5.5.16
- 5.5.17
- 5.5.18
- 5.5.19
- 5.5.20
- 5.5.21
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.0
- 5.6.1
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
No data.
Red Hat Enterprise Linux 6
php-0:5.3.3-46.el6_6
Fixed · RHSA-2015:1218
Red Hat Enterprise Linux 7
php-0:5.4.16-36.ael7b_1
Fixed · RHSA-2015:1135
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
Will not fix
Red Hat Software Collections
php54-php
Affected
Red Hat Software Collections
php55-php
Affected
Red Hat Software Collections
rh-php56-php
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | php-0:5.3.3-46.el6_6 | Fixed | RHSA-2015:1218 |
| Red Hat Enterprise Linux 7 | php-0:5.4.16-36.ael7b_1 | Fixed | RHSA-2015:1135 |
| 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 | Will not fix | n/a |
| Red Hat Software Collections | php54-php | 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 as they did not include the vulnerable code.
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 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 (46 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 43.81% (0.43815) | 98.71th | v5 (v2026.06.15) |
| Jul 7, 2026 | 43.15% (0.43146) | 98.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 41.32% (0.41315) | 98.49th | v5 (v2026.06.15) |
| May 24, 2026 | 60.76% (0.60759) | 98.32th | v4 (v2025.03.14) |
| Mar 4, 2026 | 71.15% (0.71150) | 98.68th | v4 (v2025.03.14) |
| Mar 1, 2026 | 67.33% (0.67329) | 98.54th | v4 (v2025.03.14) |
| Feb 4, 2026 | 71.15% (0.71150) | 98.67th | v4 (v2025.03.14) |
| Feb 1, 2026 | 67.33% (0.67329) | 98.53th | v4 (v2025.03.14) |
| Jan 4, 2026 | 71.15% (0.71150) | 98.66th | v4 (v2025.03.14) |
| Jan 1, 2026 | 67.33% (0.67329) | 98.52th | v4 (v2025.03.14) |
| Dec 28, 2025 | 71.15% (0.71150) | 98.65th | v4 (v2025.03.14) |
| Dec 27, 2025 | 68.84% (0.68838) | 98.58th | v4 (v2025.03.14) |
| Dec 13, 2025 | 71.15% (0.71150) | 98.65th | v4 (v2025.03.14) |
| Dec 4, 2025 | 69.70% (0.69696) | 98.58th | v4 (v2025.03.14) |
| Dec 1, 2025 | 65.71% (0.65708) | 98.43th | v4 (v2025.03.14) |
| Nov 4, 2025 | 69.70% (0.69696) | 98.59th | v4 (v2025.03.14) |
| Nov 1, 2025 | 65.71% (0.65708) | 98.44th | v4 (v2025.03.14) |
| Oct 28, 2025 | 69.70% (0.69696) | 98.59th | v4 (v2025.03.14) |
| Oct 27, 2025 | 67.28% (0.67280) | 98.50th | v4 (v2025.03.14) |
| Oct 4, 2025 | 69.70% (0.69696) | 98.61th | v4 (v2025.03.14) |
| Oct 1, 2025 | 65.71% (0.65708) | 98.45th | v4 (v2025.03.14) |
| Sep 11, 2025 | 67.28% (0.67280) | 98.52th | v4 (v2025.03.14) |
| Sep 4, 2025 | 55.92% (0.55919) | 98.02th | v4 (v2025.03.14) |
| Sep 1, 2025 | 50.88% (0.50876) | 97.80th | v4 (v2025.03.14) |
| Aug 21, 2025 | 55.92% (0.55919) | 98.00th | v4 (v2025.03.14) |
| Aug 4, 2025 | 54.01% (0.54012) | 97.89th | v4 (v2025.03.14) |
| Aug 1, 2025 | 48.90% (0.48897) | 97.69th | v4 (v2025.03.14) |
| Jul 30, 2025 | 54.01% (0.54012) | 97.89th | v4 (v2025.03.14) |
| Jul 4, 2025 | 57.07% (0.57071) | 98.00th | v4 (v2025.03.14) |
| Jul 1, 2025 | 59.90% (0.59904) | 98.15th | v4 (v2025.03.14) |
| Jun 4, 2025 | 64.50% (0.64499) | 98.32th | v4 (v2025.03.14) |
| Jun 1, 2025 | 59.90% (0.59904) | 98.14th | v4 (v2025.03.14) |
| May 4, 2025 | 64.06% (0.64060) | 98.30th | v4 (v2025.03.14) |
| May 1, 2025 | 59.10% (0.59105) | 98.09th | v4 (v2025.03.14) |
| Apr 16, 2025 | 64.06% (0.64060) | 98.28th | v4 (v2025.03.14) |
| Apr 12, 2025 | 65.28% (0.65276) | 98.36th | v4 (v2025.03.14) |
| Mar 30, 2025 | 68.93% (0.68927) | 98.52th | v4 (v2025.03.14) |
| Mar 29, 2025 | 63.75% (0.63749) | 97.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 68.93% (0.68927) | 98.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 94.96% (0.94959) | 99.39th | v3 (v2023.03.01) |
| Mar 6, 2024 | 95.48% (0.95481) | 99.33th | v3 (v2023.03.01) |
| Dec 5, 2023 | 95.50% (0.95499) | 99.21th | v3 (v2023.03.01) |
| May 28, 2023 | 95.47% (0.95466) | 99.03th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.82% (0.95819) | 99.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 51.10% (0.51097) | 98.73th | v2 (v2022.01.01) |
| Feb 4, 2022 | 51.10% (0.51097) | 98.31th | v2 (v2022.01.01) |
References (31)
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=71335e6ebabc1b12c057d8017fd811892ecdfd24 x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html vendor-advisoryx_refsource_APPLE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00003.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00004.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=143403519711434&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=143748090628601&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=144050155601375&w=2 vendor-advisoryx_refsource_HP
- http://php.net/ChangeLog-5.php x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2015-1053.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1066.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1135.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1218.html vendor-advisoryx_refsource_REDHAT
- http://support.apple.com/kb/HT204942 x_refsource_CONFIRM
- http://www.debian.org/security/2015/dsa-3195 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:079 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/72701 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031945 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2535-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-0273 Vendor Advisory
- https://bugs.php.net/bug.php?id=68942 x_refsource_CONFIRMExploit
- https://bugzilla.redhat.com/show_bug.cgi?id=1194730 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-0273
- https://security.gentoo.org/glsa/201606-10 vendor-advisoryx_refsource_GENTOO
- https://support.apple.com/HT205267 x_refsource_CONFIRM
- https://support.apple.com/HT205375 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-0273
Change history (0)
No recorded changes yet.