In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 6.9 | Medium | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
| Product | Vendor | Version |
|---|---|---|
| libexpat | libexpat project | < 8.5.5 |
| libexpat | libexpat project | < 9 |