Impact: Moderate Public Date: 2019-09-04 CWE: (CWE-122|CWE-125) Bugzilla: 1752592: CVE-2019-15903 expat: heap-based buffer over-read via crafted XML input In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-15903 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 5.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | expat | Under investigation |
| Red Hat JBoss EWS 2 | httpd | Under investigation |
| Red Hat JBoss EAP 6 | httpd | Under investigation |
| Red Hat Enterprise Linux 8 | expat | Under investigation |
| Red Hat Enterprise Linux 8 | mingw-expat | Under investigation |
| Red Hat Enterprise Linux 7 | xulrunner | Under investigation |
| Red Hat Enterprise Linux 7 | firefox | Under investigation |
| Red Hat Enterprise Linux 7 | expat | Under investigation |
| Red Hat Enterprise Linux 7 | thunderbird | Under investigation |
| Red Hat Enterprise Linux 6 | firefox | Under investigation |
| Red Hat Enterprise Linux 6 | thunderbird | Under investigation |
| Red Hat Enterprise Linux 6 | expat | Under investigation |
| Red Hat Enterprise Linux 6 | xulrunner | Under investigation |
| Red Hat Enterprise Linux 5 | thunderbird | Under investigation |
| Red Hat Enterprise Linux 5 | expat | Under investigation |
| Red Hat Enterprise Linux 5 | xmlrpc-c | Under investigation |
| Red Hat Enterprise Linux 5 | firefox | Under investigation |
| Red Hat Enterprise Linux 5 | xulrunner | Under investigation |
Vulmon