*** This bug is a security vulnerability *** You have been subscribed to a public security bug by Marc Deslauriers (mdeslaur):
Please see Security Advisory 1203 on the Videolan website: http://www.videolan.org/security/sa1203.html --> 12.04 and before seem to be affected? 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. ** Affects: vlc (Ubuntu) Importance: Undecided Status: New -- When parsing an invalid PNG image file, a buffer overflow might occur. https://bugs.launchpad.net/bugs/1095434 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
