CVE-2022-25236
Public on 2022-02-16
Modified on 2023-01-18
Description
A flaw was found in expat. Passing one or more namespace separator characters in the "xmlns[:prefix]" attribute values made expat send malformed tag names to the XML processor on top of expat. This issue causes arbitrary code execution depending on how unexpected cases are handled inside the XML processor.
Severity
Critical
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | expat | 2022-03-09 | ALAS-2022-1573 | Fixed |
| Amazon Linux 2 - Core | expat | 2022-03-09 | ALAS2-2022-1764 | Fixed |
| Amazon Linux 2023 | expat | 2023-02-17 | ALAS2023-2023-058 | Fixed |
| Amazon Linux 2 - Core | thunderbird | 2022-04-25 | ALAS2-2022-1779 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv2 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| NVD | CVSSv3 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |