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Message-Id: <20151001205851.2DC476C0094@smtpvmsrv1.mitre.org>
Date: Thu, 1 Oct 2015 16:58:51 -0400 (EDT)
From: cve-assign@...re.org
To: julien@....org
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com, keescook@...omium.org
Subject: Re: CVE Request: Unauthorized access to IPC objects with SysV shm
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
> ipc_addid installs new ipc object with idr_alloc, from this point on
> it is accessible to other threads. At this point the object contains
> unitialized garbage. Then it fills in uid, etc:
>
> new->cuid = new->uid = euid;
> new->gid = new->cgid = egid;
> new->seq = ids->seq++;
>
> While this happens another thread can get access to the object and do
> uid check on the unitialized garbage, which can give falsely give
> accesses
Use CVE-2015-7613.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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