Package : libav Version : 6:11.12-1~deb8u3 CVE ID : CVE-2015-6822 CVE-2015-6823 CVE-2015-6824 Two more security issues have been corrected in the libav multimedia library. This is a follow-up announcement for DLA-1611-1. CVE-2015-6823 The allocate_buffers function in libavcodec/alac.c did not initialize certain context data, which allowed remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted Apple Lossless Audio Codec (ALAC) data. This issues has now been addressed by clearing pointers in avcodec/alac.c's allocate_buffers(). Other than stated in debian/changelog of upload 6:11.12-1~deb8u2, this issue only now got fixed with upload of 6:11.12-1~deb8u3. CVE-2015-6824 The sws_init_context function in libswscale/utils.c did not initialize certain pixbuf data structures, which allowed remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted video data. In swscale/utils.c now these pix buffers get cleared which fixes use of uninitialized memory. Other than stated in debian/changelog of upload 6:11.12-1~deb8u2, this issue only now got fixed with upload of 6:11.12-1~deb8u3. For Debian 8 "Jessie", these problems have been fixed in version 6:11.12-1~deb8u3. We recommend that you upgrade your libav packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS -- mike gabriel aka sunweaver (Debian Developer) fon: +49 (1520) 1976 148 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: sunweaver@debian.org, http://sunweavers.net
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