The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-6004 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 7.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat JBoss Core Services 1 | RHSA-2018:2486 | 2018-08-16 |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-mariadb101-mariadb | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-php70-php | Will not fix |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-php56-php | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-mariadb100-mariadb | Not affected |
| Red Hat JBoss Web Server 3.0 | httpd | Will not fix |
| Red Hat JBoss Web Server 3 | pcre | Not affected |
| Red Hat JBoss EWS 2 | httpd | Will not fix |
| Red Hat JBoss EWS 1 | httpd | Will not fix |
| Red Hat Enterprise Linux 7 | pcre | Will not fix |
| Red Hat Enterprise Linux 7 | virtuoso-opensource | Not affected |
| Red Hat Enterprise Linux 7 | glib2 | Not affected |
| Red Hat Enterprise Linux 6 | pcre | Not affected |
| Red Hat Enterprise Linux 6 | glib2 | Not affected |
| Red Hat Enterprise Linux 5 | pcre | Not affected |
| Red Hat Directory Server 8 | pcre | Not affected |
Vulmon