|Bugzilla:||537273: CVE-2006-6304 kernel: use flag in do_coredump()|
The MITRE CVE dictionary describes this issue as:
The do_coredump function in fs/exec.c in the Linux kernel 2.6.19 sets the flag variable to O_EXCL but does not use it, which allows context-dependent attackers to modify arbitrary files via a rewrite attack during a core dump.
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commit d025c9db that introduced the problem.
This upstream commit was backported in Red Hat Enterprise Linux 5 via RHSA-2009:0225. It was later reported and addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html
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Red Hat security errata
|Red Hat Enterprise Linux version 5 (kernel)||RHSA-2010:0046||January 19, 2010|
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