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Openwall Linux Kernel Patch

Posted Jun 3, 2002

Authored by Solar Designer | Site openwall.com

The Openwall Linux kernel patch is a collection of security "hardening" features for the Linux kernel which can stop most 'cookbook' buffer overflow exploits. The patch can also add more privacy to the system by restricting access to parts of /proc so that users may not see what others are doing. Also tightens down file descriptors 0, 1, and 2, implements process limits and shared memory destruction.

Changes: Updated for Linux 2.2.21. Permissions on /proc entries have been changed to be consistent with Linux 2.4.18-ow0, and the getcwd(2) instance of the d_path() truncation problem and the fsuid/fsgid handling inconsistency have been fixed.

tags | overflow, kernel

systems | linux

SHA-256 | a2a533a4d8f7adba193ff7a7df1163b538c95bd8fb6048e91973590e2c4726db

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