CVE-2016-4302

Published: 23 June 2016

Heap-based buffer overflow in the parse_codes function in archive_read_support_format_rar.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a RAR file with a zero-sized dictionary.

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
libarchive Launchpad, Ubuntu, Debian	precise	Released (3.0.3-6ubuntu1.3)
	trusty	Released (3.1.2-7ubuntu2.3)
	upstream	Needed
	wily	Released (3.1.2-11ubuntu0.15.10.2)
	xenial	Released (3.1.2-11ubuntu0.16.04.2)
	Patches: upstream: https://github.com/libarchive/libarchive/commit/05caadc7eedbef471ac9610809ba683f0c698700 upstream: https://github.com/libarchive/libarchive/commit/5e29e82390bccfff514e710c90de8089ab5ef269

Severity score breakdown

Parameter	Value
Base score	7.8
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

References

Bugs

https://github.com/libarchive/libarchive/issues/719

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