CVE-2017-9815

Publication date 22 June 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

In LibTIFF 4.0.7, the TIFFReadDirEntryLong8Array function in libtiff/tif_dirread.c mishandles a malloc operation, which allows attackers to cause a denial of service (memory leak within the function _TIFFmalloc in tif_unix.c) via a crafted file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tiff	17.10 artful	Not affected
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 4.0.6-1ubuntu0.3
	14.04 LTS trusty	Fixed 4.0.3-7ubuntu0.8

Notes

seth-arnold

If this actually leaks only the 8 bytes shown in the bug then this cve should be rejected. I'm marking it 'low' rather than 'negligible' just so that we eventually return to the bug and see the results.

mdeslaur

same commit as CVE-2017-9403 this will not be fixed 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: fb3dc46

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-3602-1
LibTIFF vulnerabilities
20 March 2018