CVE-2026-27171
Public on 2026-02-18
Modified on 2026-03-07
Description
A flaw was found in zlib. An attacker providing specially crafted input to the crc32_combine64 or crc32_combine_gen64 functions could trigger an infinite loop within the x2nmodp function. This leads to excessive CPU consumption, which can result in a Denial of Service (DoS) for the affected system.
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | binutils | Not Affected | ||
| Amazon Linux 2023 | binutils | Not Affected | ||
| Amazon Linux 2 - Firefox Extra | firefox | Not Affected | ||
| Amazon Linux 2023 | firefox | Not Affected | ||
| Amazon Linux 2 - Core | freetype | Not Affected | ||
| Amazon Linux 2023 | freetype | Not Affected | ||
| Amazon Linux 2023 | gjs | Not Affected | ||
| Amazon Linux 2023 | java-1.8.0-amazon-corretto | Not Affected | ||
| Amazon Linux 2 - Core | java-1.8.0-openjdk | Not Affected | ||
| Amazon Linux 2023 | java-21-amazon-corretto | Not Affected | ||
| Amazon Linux 2023 | java-25-amazon-corretto | Not Affected | ||
| Amazon Linux 2023 | mariadb105 | Not Affected | ||
| Amazon Linux 2023 | nodejs20 | Pending Fix | ||
| Amazon Linux 2023 | nodejs22 | Pending Fix | ||
| Amazon Linux 2023 | nodejs24 | Pending Fix | ||
| Amazon Linux 2023 | nss | Not Affected | ||
| Amazon Linux 2023 | sudo | Not Affected | ||
| Amazon Linux 2023 | swiftlang | Not Affected | ||
| Amazon Linux 2 - Core | thunderbird | Not Affected | ||
| Amazon Linux 2 - Core | zlib | Not Affected | ||
| Amazon Linux 2023 | zlib | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 2.9 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |