CVE-2017-10708

Publication date 18 July 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An issue was discovered in Apport through 2.20.x. In apport/report.py, Apport sets the ExecutablePath field and it then uses the path to run package specific hooks without protecting against path traversal. This allows remote attackers to execute arbitrary code via a crafted .crash file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apport	17.04 zesty	Fixed 2.20.4-0ubuntu4.5
	16.10 yakkety	Fixed 2.20.3-0ubuntu8.7
	16.04 LTS xenial	Fixed 2.20.1-0ubuntu2.10
	14.04 LTS trusty	Fixed 2.14.1-0ubuntu3.25

Notes

tyhicks

Apport registers itself as the default handler for .crash files so an attacker could trick a user into opening a malicious .crash file and execute arbitrary code as the user. A potential method of hardening apport against these types of attacks is to unregister it as the handler for .crash files.

Patch details

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

Package	Patch details
apport	Upstream: https://bazaar.launchpad.net/~apport-hackers/apport/trunk/revision/3153

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H