Description
php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | php5 | 5.6.23+dfsg-0+deb8u1 | DSA-3618-1 |
| Debian 7 | php5 | 5.4.45-0+deb7u5 | DLA-628-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | php7.0 | 7.0.8-0ubuntu0.16.04.1 | USN-3045-1 |
| Ubuntu 14.04 LTS | php5 | 5.5.9+dfsg-1ubuntu4.19 | USN-3045-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 2 | rh-php56 +2 | 2.3-1.el6 | RHSA-2016:2750 |
| RHEL 2 | rh-php56-php +27 | 5.6.25-1.el6 | RHSA-2016:2750 |
| RHEL 2 | rh-php56-php-pear | 1:1.9.5-4.el6 | RHSA-2016:2750 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | imap | 2007e_suse-22.1 | SUSE-SU-2016:2975-1 |
| SLES 12 SP2 | php5 | 5.5.14-86.2 | SUSE-SU-2016:2975-1 |
| SLES 12 SP1 | imap | 2007e_suse-22.1 | SUSE-SU-2016:2975-1 |
| SLES 12 SP1 | php5 | 5.5.14-86.2 | SUSE-SU-2016:2975-1 |
| SLES 12 | imap | 2007e_suse-22.1 | SUSE-SU-2016:2975-1 |
| SLES 12 | php5 | 5.5.14-86.2 | SUSE-SU-2016:2975-1 |
| SLES 11 SP4 | php53 | 5.3.17-112.20.1 | SUSE-SU-2018:0806-1 |
| SLES 11 SP3 | php53 | 5.3.17-112.20.1 | SUSE-SU-2018:0806-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | php53 | 5.3.17-112.20.1 | SUSE-SU-2018:0806-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | php53 | 5.3.17-112.20.1 | SUSE-SU-2018:0806-1 |
Advisories 6
- RHSA-2016:2750 Red Hat Security Advisory: rh-php56 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- USN-3045-1 php5, php7.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-628-1 php5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3618-1 php5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:2975-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0806-1 Security update for php53 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- APPLE-SA-2016-09-20 vendor-advisory
- openSUSE-SU-2016:1761 vendor-advisory
- RHSA-2016:2750 vendor-advisory
- http://github.com/php/php-src/commit/f6aef68089221c5ea047d4a74224ee3deead99a6?w=1
- https://bugs.php.net/bug.php?id=72434
- http://php.net/ChangeLog-5.php
- [oss-security] 20160623 Re: CVE for PHP 5.5.37 issues mailing-list
- DSA-3618 vendor-advisory
- http://php.net/ChangeLog-7.php
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- https://support.apple.com/HT207170
- 91397 vdb-entry