CVE-2010-0307

The load_elf_binary function in fs/binfmt_elf.c in the Linux kernel before 2.6.32.8 on the x86_64 platform does not ensure that the ELF interpreter is available before a call to the SET_PERSONALITY macro, which allows local users to cause a denial of service (system crash) via a 32-bit application that attempts to execute a 64-bit application and then triggers a segmentation fault, as demonstrated by amd64_killer, related to the flush_old_exec function.

From the Ubuntu Security Team

Mathias Krause discovered that the Linux kernel did not correctly handle missing ELF interpreters. A local attacker could exploit this to cause the system to crash, leading to a denial of service.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	9.10 karmic	Fixed 2.6.31-20.58
	9.04 jaunty	Fixed 2.6.28-18.60
	8.10 intrepid	Fixed 2.6.27-17.46
	8.04 LTS hardy	Fixed 2.6.24-27.68
	6.06 LTS dapper	Not in release
linux-source-2.6.15	9.10 karmic	Not in release
	9.04 jaunty	Not in release
	8.10 intrepid	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Fixed 2.6.15-55.83

Notes

jdstrand

commits based on comments from dann frazier <[email protected]> in oss-security

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux	Upstream: http://git.kernel.org/linus/221af7f87b97431e3ee21ce4b0e77d5411cf1549 Upstream: http://git.kernel.org/linus/7ab02af428c2d312c0cf8fb0b01cc1eb21131a3d Upstream: http://git.kernel.org/linus/05d43ed8a89c159ff641d472f970e3f1baa66318 Upstream: http://git.kernel.org/linus/94f28da8409c6059135e89ac64a0839993124155 Upstream: http://git.kernel.org/linus/94673e968cbcce07fa78dac4b0ae05d24b5816e1

References

Related Ubuntu Security Notices (USN)