OpenOffice.org Powerpoint Denial Of Service

2012.05.17
Credit: Sven Jacobias
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-189


Ogólna skala CVSS: 6.8/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 8.6/10
Wymagany dostęp: Zdalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 CVE-2012-2334 Vulnerabilities related to malformed Powerpoint files in OpenOffice.org 3.3.0 Reference: http://www.openoffice.org/security/cves/CVE-2012-2334.html Severity: Important Vendor: The Apache Software Foundation Versions Affected: OpenOffice.org 3.3 and 3.4 Beta, on all platforms. Earlier versions may be also affected. Description: A review of the code in filter/source/msfilter msdffimp.cxx revealed some unchecked memory allocations, which could be exploited via malformed Powerpoint graphics records ("escher") to cause bad_alloc exceptions. From this vulnerability a denial of service attack is possible. Mitigation OpenOffice.org 3.3.0 and 3.4 beta users are advised to upgrade to Apache OpenOffice 3.4. Users who are unable to upgrade immediately should be cautious when opening untrusted documents. Credits The Apache OpenOffice Security Team credits Sven Jacobias as the discoverer of this flaw. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBCgAGBQJPs8AjAAoJEGFAoYdHzLzHPiIP/15rlvzCaozoZfXAL1/0BXBA X/gPJPqIsS88bG7CTOxmQ2fzLXj0MrCe4OIQ/piKkzglymybKcJzaOK2Kv3eCwZ1 KQeC2FDu16LBtymySuZaA86iMY4nsfWRdNkrrMYS1/pdvX6ouxEEi4zHqAKTNuhu CusnujucvQAxXgdCEYTp7hU1ZtUPJm/4jQ2DkIqGTqusqE85IwwXNP/cw/eQbtmH rTTw/piY69KViJbz+iSBZ8EpfFmvEbdtrz0lxwvQNGDy4em+CwjqTH5tqV4b31Ln d5LagTQM5qdTlEAK01KDc3iPst7NrUrU5kN3ohjvpzlTGP74LqB0sTnBljm7TTCd V7RQTxsPF8GiVeutAq/TozvL83xdqmbVKyYfZR0YYmG+6RKNMERoCkgZAKhKVaJ2 xhAOiywrU2c8QAkO4iQlP+jkGyDBf2tzjdOl7haga+upnXfTy7TfTcpxd/UTs1lx atSPkQFpsvOexQ4yYKN687bUvmpWZzjwOEu4TmSFeOYD9KV5UGrVwt4ymkuLYl32 Brdp+1PY3fp9BWIRCy7FjY62BvW4EwbExiLr7OsKl7OmB2XWMvnS3p0owNuRrb87 i+536fO20e0cmp8BiFM6GhwY+eIJvnO77csDgEd5v+1tJGvskTFb7qss7yx/367Q fKJPdxJyUiuOWdg9bMV0 =9Scx -----END PGP SIGNATURE-----

Referencje:

http://www.openoffice.org/security/cves/CVE-2012-2334.html


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