Description
kernel drivers before version 4.17-rc1 are vulnerable to a weakness in the Linux kernel's implementation of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kernel | drivers | kernel 4.17-rc1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.16.5-1 | — |
| Debian 13 | linux | 4.16.5-1 | — |
| Debian 12 | linux | 4.16.5-1 | — |
| Debian 9 | linux | 4.9.320-2 | DLA-3065-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | linux | 4.15.0-33.36 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-aws +1 | 4.15.0-1020.20 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-azure | 4.15.0-1022.23 | USN-3752-3 |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1018.19 | USN-3752-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1017.20 | USN-3752-3 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1021.23 | USN-3752-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1022.22~16.04.1 | USN-3752-3 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1018.19~16.04.2 | USN-3752-3 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-33.36~16.04.1 | USN-3752-2 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | perf +7 | 4.14.42-61.37.amzn2 | ALAS2-2018-1023 |
Advisories 6
- USN-3752-1 linux, linux-aws, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3752-3 linux-azure, linux-oem, linux-gcp vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3752-2 linux-hwe vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- DLA-3065-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2022-0532 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 11, 2025
- ALAS2-2018-1023 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 29, 2018
References
- USN-3752-2 vendor-advisory
- USN-3752-3 vendor-advisory
- USN-3718-2 vendor-advisory
- 104055 vdb-entry
- DSA-4188 vendor-advisory
- USN-3718-1 vendor-advisory
- USN-3752-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1108
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update mailing-list