Tracker / CVE-2017-17805
CVE-2017-17805
High 7.8
The Salsa20 encryption algorithm in the Linux kernel before 4.14.8 does not correctly handle zero-length inputs, allowing a local attacker able to use the AF_ALG-based skcipher interface (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service (uninitialized-memory free and kernel crash) or have unspecified other impact by executing a crafted sequence of system calls that use the blkcipher_walk API. Both the generic implementation (crypto/salsa20_generic.c) and x86 implementation (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| linux | linux_kernel · 2.6.25 → 3.2.97 |
| linux | linux_kernel · 3.17 → 3.18.89 |
| linux | linux_kernel · 3.19 → 4.1.49 |
| linux | linux_kernel · 3.3 → 3.16.52 |
| linux | linux_kernel · 4.10 → 4.14.8 |
| linux | linux_kernel · 4.2 → 4.4.107 |
| linux | linux_kernel · 4.5 → 4.9.71 |
| opensuse | leap |
| opensuse_project | leap |
| suse | linux_enterprise_desktop |
| suse | linux_enterprise_server |
| suse | linux_enterprise_server_for_raspberry_pi |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.