Resource exhaustion in LibTIFF - CVE-2018-5784
Published: April 3, 2018
Vulnerability identifier: #VU11500
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-5784
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the TIFFSetDirectory function of tif_dir.c due to the declared number of directory entries is not validated against the actual number of directory entries. A remote attacker can submit a specially crafted tif file, trigger resource exhaustion and cause the service to crash.
The weakness exists in the TIFFSetDirectory function of tif_dir.c due to the declared number of directory entries is not validated against the actual number of directory entries. A remote attacker can submit a specially crafted tif file, trigger resource exhaustion and cause the service to crash.
Affected software
LibTIFF
Arch Linux
Debian Linux
Fedora
tiff (Alpine package)
libtiff
Arch Linux
Debian Linux
Fedora
tiff (Alpine package)
libtiff
How to mitigate CVE-2018-5784
Install update from vendor's website.
tiff (Alpine package) - update to 4.0.9-r2
libtiff - addressed in versions 4.0.9-7.fc27, 4.0.9-7.fc28
libtiff - addressed in versions 4.0.9-7.fc27, 4.0.9-7.fc28