Ispravljene su tri ranjivosti programskog paketa FFmpeg koji se koristi za snimanje i pregled multimedijskih sadržaja. Otkrivene ranjivosti se nalaze u FFmpeg koderima koji se koriste i u drugim programskim paketima poput MPlayer. Prva ranjivost je otkrivena u datoteci "flicvideo.c", a udaljeni napadači ju mogu iskoristiti za pokretanje proizvoljnog programskog koda podmetanjem posebne flic datoteke. Druge dvije ranjivosti se očituju u "libavcodec/vorbis_dec.c" kao cjelobrojno prepisivanje, a mogu se iskoristiti za DoS napad. Korisnike se savjetuje na primjenu nadogradnje.

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Debian Security Advisory DSA-2165-1                   Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/                             Luciano Bello
February 16, 2011                      http://www.debian.org/security/faq
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Package        : ffmpeg-debian
Vulnerability  : buffer overflow
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2010-3429 CVE-2010-4704 CVE-2010-4705

Several vulnerabilities have been discovered in FFmpeg coders, which are used
by
by MPlayer and other applications.


CVE-2010-3429

  Cesar Bernardini and Felipe Andres Manzano reported an arbitrary offset 
  dereference vulnerability in the libavcodec, in particular in the flic file 
  format parser. A specific flic file may exploit this vulnerability and
execute
  arbitrary code. Mplayer is also affected by this problem, as well as other 
  software that use this library.


CVE-2010-4704

  Greg Maxwell discovered an integer overflow the Vorbis decoder in FFmpeg. A 
  specific ogg file may exploit this vulnerability and execute arbitrary code.


CVE-2010-4705

  A potential integer overflow has been discovered in the Vorbis decoder in 
  FFmpeg.


This upload also fixes an incomplete patch from DSA-2000-1. Michael Gilbert 
noticed that there was remaining vulnerabilities, which  may cause a denial of

service and potentially execution of arbitrary code.

For the oldstable distribution (lenny), this problem has been fixed in
version 0.svn20080206-18+lenny3.

We recommend that you upgrade your ffmpeg-debian packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.

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