CVE-2017-6439

Publication date 15 March 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Heap-based buffer overflow in the parse_string_node function in bplist.c in libimobiledevice libplist 1.12 allows local users to cause a denial of service (out-of-bounds write) via a crafted plist file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libplist	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

ratliff

same fix as for CVE-2017-6436 likely introduced during post-1.12 refactoring of parse_bin_node() reproducer doesn't exhibit failure in 1.12

Severity score breakdown

Parameter	Value
Base score	5.0 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H