ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-12932 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS3 Base Score | 8.1 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Attack Vector | Network |
Attack Complexity | High |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity Impact | High |
Availability Impact | High |
Platform | Errata | Release Date |
---|---|---|
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-php70-php) | RHSA-2018:1296 | 2018-05-03 |
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-php70-php) | RHSA-2018:1296 | 2018-05-03 |
Platform | Package | State |
---|---|---|
Red Hat Software Collections for Red Hat Enterprise Linux | rh-php56-php | Not affected |
Red Hat Software Collections for Red Hat Enterprise Linux | rh-php71-php | Will not fix |
Red Hat Enterprise Linux 7 | php | Not affected |
Red Hat Enterprise Linux 6 | php | Not affected |
Red Hat Enterprise Linux 5 | php53 | Not affected |
Red Hat Enterprise Linux 5 | php | Not affected |