# CVE-2026-16317: aws-efs-utils: This update for aws-efs-utils fixes the following issues:  Security issues fixed:  - CVE-2026-16317: s2n-tls: man-in-...

CVE-2026-16317 is fixed in 3 products on 1 platform, first by OPENSUSE-SU-2026:21501-1, released July 29, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-16317
- Priority: High
- CVSS: n/a (important)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 29, 2026

## Description

This update for aws-efs-utils fixes the following issues:  Security issues fixed:  - CVE-2026-16317: s2n-tls: man-in-the-middle attack can silently discard individual application data records   (bsc#1272354). - CVE-2026-16318: s2n-tls: Denial of Service due to memory leak in QUIC transport parameters handler (bsc#1272349). - CVE-2026-25541: bytes: integer overflow in 'BytesMut:reserve' can lead to undefined behavior and crashes   (bsc#1274202).  Changes for aws-efs-utils:  - Update to version 3.3.4

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | amazon-efs-utils amzn 2023 | 3.3.5-1.amzn2023 | [ALAS2023-2026-3378](https://patchblox.com/security/data/fix/linux/alas2023-2026-3378.md) | Nov 10, 2026 |
| Linux | aws-efs-utils sles 15.6 | 3.3.4-150600.17.12.1 | [SUSE-SU-2026:5101-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5101-1.md) | Nov 7, 2026 |
| Linux | aws-efs-utils sles 15.7 | 3.3.4-150600.17.12.1 | [SUSE-SU-2026:5101-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5101-1.md) | Nov 7, 2026 |
| Linux | s2n opensuse-leap 16.0 | 1.5.1-bp160.2.1 | [OPENSUSE-SU-2026:21501-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21501-1.md) | Jul 29, 2026 |

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Data as of 2026-11-10T07:50:38Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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