CVE-2016-5300
The MITRE CVE dictionary describes this issue as:
The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.
Find out more about CVE-2016-5300 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v2 metrics
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss Web Server 3.0 | expat | Will not fix |
| Red Hat JBoss EWS 2 | expat | Will not fix |
| Red Hat JBoss EAP 6 | expat | Will not fix |
| Red Hat JBoss Core Services 1 | expat | Not affected |
| Red Hat Enterprise Linux 7 | xulrunner | Not affected |
| Red Hat Enterprise Linux 7 | firefox | Not affected |
| Red Hat Enterprise Linux 7 | expat | Will not fix |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected |
| Red Hat Enterprise Linux 6 | firefox | Not affected |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected |
| Red Hat Enterprise Linux 6 | xulrunner | Not affected |
| Red Hat Enterprise Linux 6 | expat | Will not fix |
| Red Hat Enterprise Linux 6 | compat-expat1 | Not affected |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected |
| Red Hat Enterprise Linux 5 | expat | Will not fix |
| Red Hat Enterprise Linux 5 | xulrunner | Not affected |
| Red Hat Enterprise Linux 5 | firefox | Not affected |
| Red Hat Enterprise Linux 5 | xmlrpc-c | Will not fix |
| Red Hat Directory Server 8 | expat | Will not fix |
CVE description copyright © 2017, The MITRE Corporation