A flaw was found in LibTIFF through 4.0.9. TIFFWriteDirectorySec() function in tif_dirwrite.c allows remote attackers to cause a denial of service (assertion failure and application crash) via a crafted file.
Created libtiff tracking bugs for this issue:
Affects: fedora-all [bug 1579061]
Created mingw-libtiff tracking bugs for this issue:
Affects: epel-7 [bug 1579062]
Affects: fedora-all [bug 1579059]
This issue did not affect the versions of libtiff as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include the vulnerable code.
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via RHSA-2019:2053 https://access.redhat.com/errata/RHSA-2019:2053
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):