Re: stable-security kernel updates

[Sasha Levin]

On 04/21/2016 08:39 AM, Greg KH wrote:
> On Thu, Apr 21, 2016 at 02:05:41PM +0200, Jiri Slaby wrote:
>> > On 04/21/2016, 01:59 PM, Jiri Slaby wrote:
>>>> > >> (CVE-2016-2085) 613317b EVM: Use crypto_memneq() for digest comparisons
>>> > > 
>>> > > Does not exist in the CVE database/is not confirmed yet AFAICS.
>> > 
>> > And now I am looking at the patch and I remember why I threw it away.
>> > crypto_memneq is not in 3.12 yet and I was not keen enough to backport  it.
> Which brings up the question, Sasha, why did you think these CVEs were
> relevant for 3.12?  What were you basing that list on?

The EVM one? Because there exists a vulnerability in the 3.12 EVM code which
allows an attacker to essentially circumvent integrity checks, and the reason
it wasn't fixed was because a memory comparison helper function wasn't backported?

For the other CVEs I've listed? I looked at what went in to 3.14 but not 3.12,
and audited the resulting list to confirm that the vulnerability existed on 3.12.


Thanks,
Sasha