A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious, local users to gain knowledge of potentially sensitive information.
The vulnerability is caused due to the "copy_from_user" function not correctly clearing kernel buffers after receiving a fault because of invalid user space addresses. This can be exploited to read uninitialised kernel memory by appending to files from invalid addresses.
Note: The vulnerability affects the s390 architecture only.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=52149ba6b0ddf3e9d965257cc0513193650b3ea8
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to firstname.lastname@example.org
Subject: Linux Kernel s390 "copy_from_user" Information Disclosure
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.