Description
Use-after-free vulnerability in the CURLFile implementation in ext/curl/curl_file.c in PHP before 5.6.27 and 7.x before 7.0.12 allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data that is mishandled during __wakeup processing.
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 | 5.6.27+dfsg-0+deb8u1 | DSA-3698-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | php7.0 | 7.0.15-0ubuntu0.16.04.2 | USN-3211-1 |
| Ubuntu 14.04 LTS | php5 | 5.5.9+dfsg-1ubuntu4.21 | USN-3196-1 |
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 SP2 | php7 | 7.0.7-25.1 | SUSE-SU-2016:2941-1 |
| 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 SP1 | php7 | 7.0.7-25.1 | SUSE-SU-2016:2941-1 |
| 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 12 | php7 | 7.0.7-25.1 | SUSE-SU-2016:2941-1 |
Advisories 5
- USN-3211-1 php7.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3196-1 php5 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3698-1 php5 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:2941-1 Security update for php7 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2975-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://bugs.php.net/bug.php?id=73147
- http://www.php.net/ChangeLog-7.php
- http://www.php.net/ChangeLog-5.php
- https://www.tenable.com/security/tns-2016-19
- 93577 vdb-entry
- [oss-security] 20161101 Re: CVE assignment for PHP 5.6.27 and 7.0.12 mailing-list
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=0e6fe3a4c96be2d3e88389a5776f878021b4c59f
- DSA-3698 vendor-advisory