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CVE-2005-1263

Status Candidate

Overview

The elf_core_dump function in binfmt_elf.c for Linux kernel 2.x.x to 2.2.27-rc2, 2.4.x to 2.4.31-pre1, and 2.6.x to 2.6.12-rc4 allows local users to execute arbitrary code via an ELF binary that, in certain conditions involving the create_elf_tables function, causes a negative length argument to pass a signed integer comparison, leading to a buffer overflow.

Related Files

isec-0023-coredump.txt
Posted Aug 7, 2005
Authored by Paul Starzetz | Site isec.pl

Linux kernel ELF core dump privilege elevation advisory and proof of concept exploit. Affects the 2.2 series up to and including 2.2.27-rc2 and 2.4 up to and including 2.4.31-pre1. Also affected is 2.6 up to and including 2.6.12-rc4.

tags | exploit, kernel, proof of concept
systems | linux
advisories | CVE-2005-1263
SHA-256 | 212888e5da8ea742abd0cc0bfa4ca3154edd8f5a58ea7bade1c81b8ebb10754b
Openwall Linux Kernel Patch
Posted Jun 1, 2005
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: This version adds a fix to the ELF core dump vulnerability.
tags | overflow, kernel
systems | linux
advisories | CVE-2005-1263
SHA-256 | 00633e5f2a6f35002c0690c4639fb5536f58638c9b1cc221c2a1bee7fa20b7c4
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