oss-security - Re: CVE request: insecure temporary file handling in clang's scan-build utility

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Fri, 18 Apr 2014 23:29:07 -0400 (EDT)
From: cve-assign@...re.org
To: mmcallis@...hat.com
Cc: cve-assign@...re.org, 744817@...s.debian.org,
        oss-security@...ts.openwall.com
Subject: Re: CVE request: insecure temporary file handling in clang's scan-build utility

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

> Jakub Wilk discovered that clang's scan-build utility insecurely handled
> temporary files.
> 
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=744817

> The GetHTMLRunDir subroutine ...
> 
> 3) The function doesn't fail if the directory already exists, even if 
> it's owned by another user.

Use CVE-2014-2893.


[ other notes:

> 1) The directory name is easily predictable

This doesn't seem to be independently exploitable.

> 2) The directory is created with default permissions (instead of 0700).

Using default permissions is not necessarily wrong, from a CVE
perspective, in all development environments. See the
http://openwall.com/lists/oss-security/2014/03/09/1 post. In any case,
we're not currently making a separate CVE assignment for the
permissions issue. ]

- -- 
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 ]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (SunOS)

iQEcBAEBAgAGBQJTUezyAAoJEKllVAevmvms3VoH/AiIbJnqY+jfvDtCpQN7YRiw
I/2aoWY5uBPgD7V2F7JVnejX64QIN5jG8PB78JJRRRLNo9W71kJGpWpdZYVsVIFI
3rymLYd32AnAWdwx4b3NeRCncMWon5tN6WYhUvClzNl1v1A1XzP167PSPAczYhSf
pOUcJ8KiibI/UN3MuHVs35PKOTyQv9CXV9ITy6yE/TloCWXmd6zBJT4Ozd0hr39Z
XEAUcz9XhcKETC2SZuIbEKf5yk6oEhOacN3VN3JcT1lXe5Fq7YaYeMY95PRxBRPT
XHb0pEzJIO2eEpfrJkm/gdLUaXzgDyw4CSKJ35zhmveOxz6zLnstHKg9+OXPoC0=
=l1R7
-----END PGP SIGNATURE-----

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.