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kexec-tools: Multiple security flaws by management of kdump core files and ramdisk images
From: Huzaifa Sidhpurwala <huzaifas () redhat com>
Date: Wed, 05 Oct 2011 08:04:19 +0530

Hi All,

Kevan Carstensen reported multiple security flaws in kexec-tools, details are as follows:

1. CVE-2011-3588:

The default value of "StrictHostKeyChecking=no" has been used for kdump/ mkdumprd openssh integration. A remote malicious kdump server could use this flaw to impersonate the intended, correct kdump server to obtain security sensitive information (kdump core files).

2. CVE-2011-3589

mkdumprd utility copied content of certain directories into newly created initial ramdisk images, potentially leading to information leak.

3. CVE-2011-2390

mkdumprd utility created the final initial ramdisk image with world-readable permissions, possibly leading to information leak.


Huzaifa Sidhpurwala / Red Hat Security Response Team

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