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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1055 A vulnerability has been fixed in VLC 6 November 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: VLC media player Publisher: The VideoLAN Project Operating System: Windows UNIX variants (UNIX, Linux, OSX) Mobile Device Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2012-5470 Original Bulletin: http://www.videolan.org/security/sa1203.html - --------------------------BEGIN INCLUDED TEXT-------------------- Security Advisory 1203 Summary : Buffer overflow in PNG decoder Date : October 2012 Affected versions : VLC media player 2.0.3 and earlier ID : VideoLAN-SA-1203 CVE reference : CVE-2012-5470 Details When parsing an invalid PNG image file, a buffer overflow might occur. Impact If successful, a malicious third party could trigger an invalid memory access, leading to a crash of the process of the VLC media player. Because the overflow occurs while reading a buffer, rather than writing, it is believed that this issue cannot lead to arbitrary code execution. Threat mitigation Exploitation of this issue requires the user to explicitly open a specially crafted file. Workarounds The user should refrain from opening files from untrusted third parties or accessing untrusted remote sites (or disable the VLC browser plugins), until the patch is applied. Alternatively, the PNG decoder plugin (libpng_plugin.*) can be removed manually from the VLC plugin installation directory. This will prevent decoding of PNG images. Solution VLC media player 2.0.4 addresses this issue. Patches for older versions are available from the official VLC source code repository 2.0 and 1.1 branches. References The VideoLAN project http://www.videolan.org/ VLC official GIT repository http://git.videolan.org/?p=vlc.git History 14 October 2012 Patch for VLC development version. 15 October 2012 VLC media player 2.0.4 released. 2 November 2012 Security advisory published. CVE reference. 3 November 2012 Security advisory updated. Rémi Denis-Courmont, on behalf of the VideoLAN project - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUJiFqe4yVqjM2NGpAQI2ORAAgzo9ow91mEe+RNcHDVnrIdrPXhtF5I25 IDdoYm5RLQBnhaBqNgGFLdYo0wuf4KVAehhaE8Nvq+Sa/ya6tvbUhJFmISk2Ap3M p8OQOcAObYo+tA+LbDpqYm83ZoNiJWvIfmw+yf/vDx05zomX80td2zThjL9Agusp N8xd8goCxT6LBc8fhvwSQxIzzMG90Qp5ZBjHCrHriAvjUQSFkT1ZtxIdugeCJYyJ nlE6UMnX3gN7EiMwsn4sgDvNPI+g5DFn7HVCbaKEIK/N7Vw59UtXeBG2Oqbe3qc4 uJ6Kw/sXQSV2zE5Fr50W8FI3O3ZEEvFac76uyMua3D1KSpg8ePSbSDmNvx7DC7Qr ND/erX15mH9sw6DAbBVvsAXYo3WlQMxQzIHjLpCeekQObccKeRhfSh49NJopJo+X Yizjd1A8Tncrm5oLNilOZ77s1xW2LFqNhJ2v7wQ4yrlYHkwuTjhFQcjNMQbetMrc riz/F5iB3FYXZNLb3EIDq5fjsquB3sgxNUVfPHQ8gS6O07NzoYj9baZsZ0JbYyfA HGei+M+O3CjkKVNvJ9lo6miT7iAsGZv9rpW9I/E/IZyD9xo76MkyQbJCuX7Z7PfU Ki/ZKvBBEOHHe2bG65EwNVFte8gnMRf1TLYzUZxj6fgKvdMqjHSs5URM0D+ShAwX 4JxziVC9jcY= =Z8D7 -----END PGP SIGNATURE-----