Updated: 2026-02-27 03:07:15.221245
Description:
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | MEDIUM | 5.0 |
| CVSS Version 3.x | HIGH | 7.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | expat | 2.0.1 | 7.5 | HIGH | Not Vulnerable | 2022-08-17 11:02:28 | Not affected: This CVE targets an integer overflow in Expat’s copyString helper (fixed in 2.4.5); ... | |
| CentOS 7 ELS | expat | 2.1.0 | 7.5 | HIGH | Not Vulnerable | 2023-09-19 09:30:27 | Not affected: The vulnerable code path (copyString) is only invoked for the parser’s encoding-name... | |
| CentOS 8.4 ELS | expat | 2.2.5 | 7.5 | HIGH | Released | CLSA-2022:1660757175 | 2022-08-17 14:02:28 | |
| CentOS 8.5 ELS | expat | 2.2.5 | 7.5 | HIGH | Released | CLSA-2022:1660758476 | 2022-08-17 14:02:28 | |
| CloudLinux 6 ELS | expat | 2.0.1 | 7.5 | HIGH | Not Vulnerable | 2022-08-17 11:02:28 | ||
| Debian 10 ELS | expat | 2.2.6 | 7.5 | HIGH | Already Fixed | 2025-11-03 17:22:21 | ||
| Oracle Linux 6 ELS | expat | 2.0.1 | 7.5 | HIGH | Not Vulnerable | 2022-08-17 11:02:27 | Not affected: This CVE targets an integer overflow in Expat’s copyString helper (fixed in 2.4.5); ... | |
| Ubuntu 16.04 ELS | expat | 2.1.0 | 7.5 | HIGH | Not Vulnerable | 2022-08-16 03:01:13 | Not affected: The vulnerable code path (copyString) is only invoked for the parser’s encoding-name... | |
| Ubuntu 18.04 ELS | expat | 2.2.5-3 | 7.5 | HIGH | Already Fixed | 2023-06-02 09:09:54 |