A stack exhaustion flaw was found in the way Xerces-C XML parser handled deeply nested DTDs. An attacker could potentially use this flaw to crash an application using Xerces-C by tricking it into processing specially crafted data.
Find out more about CVE-2016-4463 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/ and Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
| 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 |
| CVSS3 Base Score | 4.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux Extended Update Support 7.4 (xerces-c) | RHSA-2018:3514 | 2018-11-06 |
| Red Hat Enterprise Linux Extended Update Support 7.5 (xerces-c) | RHSA-2018:3506 | 2018-11-06 |
| Red Hat Enterprise Linux 7 (xerces-c) | RHSA-2018:3335 | 2018-10-30 |
| Platform | Package | State |
|---|---|---|
| Red Hat OpenShift Enterprise 2 | xerces-c | Will not fix |
| Red Hat Enterprise MRG 3 | xerces-c | Will not fix |
| Red Hat Enterprise MRG 2 | xerces-c | Will not fix |
| Red Hat Enterprise Linux 6 | xerces-c | Will not fix |
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