CVE-2022-43680
Public on 2022-10-24
Modified on 2024-02-07
Description
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | expat | 2022-12-01 | ALAS-2022-1655 | Fixed |
| Amazon Linux 2 - Core | expat | 2022-12-01 | ALAS2-2022-1885 | Fixed |
| Amazon Linux 2023 | expat | 2023-02-17 | ALAS2023-2023-058 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |