oss-sec mailing list archives

Re: Minor security flaw with pam_xauth


From: Josh Bressers <bressers () redhat com>
Date: Tue, 21 Sep 2010 16:02:47 -0400 (EDT)


----- "Solar Designer" <solar () openwall com> wrote:

Let's use CVE-2010-3430 for the missing setfsgid.

...and the missing setgroups().

Use CVE-2010-3431 for the missing return checks on setfsuid.

OK.  BTW, I think this is not exploitable on current kernels, at least
not via RLIMIT_NPROC (it does not apply to fsuid), yet it is desirable to
check the return value from such syscalls.

What about the completely missing privilege switching in pre-1.1.2 (the
bug found by Sebastian)?  I don't recall if it already had a CVE id
assigned or not.


Ugh, this has gone south on me.

Since you have the best understanding of these, can you break them down
with reasonable explanations and I'll assign IDs to whatever still needs
them?

Thanks.

-- 
    JB


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