Description
ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | php5 | 5.5.9+dfsg-1ubuntu4.16 | USN-2952-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | php5 | 5.5.14-53.1 | SUSE-SU-2016:1166-1 |
| SLES 12 | php5 | 5.5.14-53.1 | SUSE-SU-2016:1166-1 |
| SLES 11 SP4 | php53 | 5.3.17-59.1 | SUSE-SU-2016:1581-1, SUSE-SU-2016:1145-1 |
| SLES 11 SP3 | php53 | 5.3.17-71.1 | SUSE-SU-2016:1581-1 |
| SLES 11 SP2 | php53 | 5.3.17-47.1 | SUSE-SU-2016:1638-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | php53 | 5.3.17-59.1 | SUSE-SU-2016:1581-1, SUSE-SU-2016:1145-1 |
| SUSE OpenStack Cloud 5 | php53 | 5.3.17-71.1 | SUSE-SU-2016:1581-1 |
| SUSE Manager Proxy 2.1 | php53 | 5.3.17-71.1 | SUSE-SU-2016:1581-1 |
| SUSE Manager 2.1 | php53 | 5.3.17-71.1 | SUSE-SU-2016:1581-1 |
Advisories 5
- USN-2952-1 php5 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2016:1145-1 Security update for php53 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1166-1 Security update for php5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1638-1 Security update for php53 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1581-1 Security update for php53 SUSE / openSUSE Security Updates · May 2, 2025
References
- USN-2952-1 vendor-advisory
- https://bugs.php.net/bug.php?id=69669
- openSUSE-SU-2016:1173 vendor-advisory
- SUSE-SU-2016:1166 vendor-advisory
- USN-2952-2 vendor-advisory
- http://php.net/ChangeLog-5.php
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=97aa752fee61fccdec361279adbfb17a3c60f3f4
- openSUSE-SU-2016:1167 vendor-advisory
- SUSE-SU-2016:1145 vendor-advisory