Updated: 2026-02-27 01:15:24.951931
Description:
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 4.3 |
| CVSS Version 3.x | MEDIUM | 6.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | expat | 2.0.1 | 6.5 | MEDIUM | Ignored | 2022-08-17 11:02:24 | Ignored due to low severity score | |
| CentOS 7 ELS | expat | 2.1.0 | 6.5 | MEDIUM | Ignored | 2023-09-19 09:30:27 | Ignored due to low severity | |
| CentOS 8.4 ELS | expat | 2.2.5 | 6.5 | MEDIUM | Released | CLSA-2022:1660757175 | 2022-08-17 14:02:23 | |
| CentOS 8.5 ELS | expat | 2.2.5 | 6.5 | MEDIUM | Released | CLSA-2022:1660758476 | 2022-08-17 14:02:23 | |
| CloudLinux 6 ELS | expat | 2.0.1 | 6.5 | MEDIUM | Ignored | 2022-08-17 11:02:24 | Out of support scope | |
| Debian 10 ELS | expat | 2.2.6 | 6.5 | MEDIUM | Ignored | 2025-10-11 00:22:58 | Ignored due to low severity | |
| Oracle Linux 6 ELS | expat | 2.0.1 | 6.5 | MEDIUM | Ignored | 2022-08-17 11:02:24 | Ignored due to low severity score | |
| Ubuntu 16.04 ELS | expat | 2.1.0 | 6.5 | MEDIUM | Released | CLSA-2022:1660760528 | 2022-08-17 17:02:14 | |
| Ubuntu 18.04 ELS | expat | 2.2.5-3 | 6.5 | MEDIUM | Already Fixed | 2023-06-02 09:09:54 |