CVE-2017-9935

Publication date 26 June 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tiff	17.10 artful	Fixed 4.0.8-5ubuntu0.1
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 4.0.6-1ubuntu0.4
	14.04 LTS trusty	Fixed 4.0.3-7ubuntu0.9

Notes

ratliff

reproducer errors out rather than crashing on trusty & zesty

sbeattie

possibly only affects tiff tools, not libtiff itself

mdeslaur

patch in upstream bug we will not be fixing this issue in precise/esm

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
tiff	Upstream: 3dd8f6a Upstream: d4f2136

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H