Multiple issues were found in gpac, a multimedia framework featuring the MP4Box muxer.

• CVE-2018-21015

  AVC_DuplicateConfig() at isomedia/avc_ext.c allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.

• CVE-2018-21016

  audio_sample_entry_AddBox() at isomedia/box_code_base.c allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file.

• CVE-2019-13618

  isomedia/isom_read.c in libgpac.a has a heap-based buffer over-read, as demonstrated by a crash in gf_m2ts_sync in media_tools/mpegts.c.

• CVE-2019-20161

  heap-based buffer overflow in the function ReadGF_IPMPX_WatermarkingInit() in odf/ipmpx_code.c.

• CVE-2019-20162

  heap-based buffer overflow in the function gf_isom_box_parse_ex() in isomedia/box_funcs.c.

• CVE-2019-20163

  NULL pointer dereference in the function gf_odf_avc_cfg_write_bs() in odf/descriptors.c.

• CVE-2019-20165

  NULL pointer dereference in the function ilst_item_Read() in isomedia/box_code_apple.c.

• CVE-2019-20170

  invalid pointer dereference in the function GF_IPMPX_AUTH_Delete() in odf/ipmpx_code.c.

• CVE-2019-20171

  memory leaks in metx_New in isomedia/box_code_base.c and abst_Read in isomedia/box_code_adobe.c.

• CVE-2019-20208

  dimC_Read in isomedia/box_code_3gpp.c in GPAC 0.8.0 has a stack-based buffer overflow.

For Debian 8 Jessie, these problems have been fixed in version 0.5.0+svn5324~dfsg1-1+deb8u5.

We recommend that you upgrade your gpac 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