CVE-2022-25315
Public on 2022-02-18
Modified on 2023-01-18
Description
An integer overflow was found in expat. The issue occurs in storeRawNames() by abusing the m_buffer expansion logic to allow allocations very close to INT_MAX and out-of-bounds heap writes. This flaw can cause a denial of service or potentially arbitrary code execution.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | expat | 2022-03-07 | ALAS-2022-1570 | Fixed |
| Amazon Linux 2 - Core | expat | 2022-03-07 | ALAS2-2022-1759 | Fixed |
| Amazon Linux 2023 | expat | 2023-02-17 | ALAS2023-2023-058 | Fixed |
| Amazon Linux 2 - Core | thunderbird | 2022-03-07 | ALAS2-2022-1759 | 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 |