Messages in this thread | | | Date | Thu, 2 Jul 2015 10:19:34 +0200 | From | Dick Snippe <> | Subject | CVE-2015-1805 and 3.14-longterm? |
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Hello,
I'm sorry to bother you with this, but lwn.net reported a rather serious security issue a couple of weeks ago:
http://lwn.net/Articles/646590/ https://bugzilla.redhat.com/show_bug.cgi?id=1202855 CVE-2015-1805 "It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system."
It appears that these upstream fixes haven't made it to 3.14.4[456]:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1
I'm just a (very happy!) user of the -longterm kernels, so I don't know how this normally works. But it would appear that this bug still exists in the -longterm kernels.
-- Dick Snippe, internetbeheerder NPO ICT team Media \ fight war Postbus 26444, 1202 JJ Hilversum, servicedesk@npo.nl \ not wars +31 35 6773555, Bart de Graaffweg 2, 1217 ZL Hilversum
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