CVE-2016-5771
Published: 24 June 2016
spl_array.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 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.
Notes
| Author | Note |
|---|---|
| seth-arnold | Applications should never deserialize unauthenticated data. |
| mdeslaur | does not affect 7.0.x precise needs backported fix we will not be fixing this in Ubuntu 12.04 LTS. We recommend validating untrusted data before unserializing. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
php5 Launchpad, Ubuntu, Debian |
precise |
Ignored
|
| trusty |
Released
(5.5.9+dfsg-1ubuntu4.19)
|
|
| upstream |
Needs triage
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: http://git.php.net/?p=php-src.git;a=commit;h=3f627e580acfdaf0595ae3b115b8bec677f203ee |
||
|
php7.0 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| wily |
Does not exist
|
|
| xenial |
Not vulnerable
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |