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Kaspersky LabKLA10915

HistoryDec 16, 2016 - 12:00 a.m.

KLA10915 Arbitrary code execution vulnerability in 7-Zip

2016-12-1600:00:00

Kaspersky Lab

threats.kaspersky.com

3962

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

Confidence

High

EPSS

0.011

Percentile

84.8%

JSON

A heap-based-overflow was found in 7-Zip before 16.00. By exploiting this vulnerability malicious users can execute arbitrary code. This vulnerability can be exploited remotely via a specially designed HFS+ image.

Technical details

Vulnerability occurs in method NArchive::NHfs::CHandler::ExtractZlibFile.

Original advisories

Related products

7-Zip

CVE list

CVE-2016-2334 critical

Solution

Update to the latest version

Download 7-Zip

Impacts

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.