libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-7186 from the MITRE CVE dictionary dictionary and NIST NVD.
Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
| 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 | Not affected |
| 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 | pcre2 | Not affected |
| 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