CVE-2016-9844

Publication date 18 January 2017

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

4.0 · Medium

Score breakdown

Buffer overflow in the zi_short function in zipinfo.c in Info-Zip UnZip 6.0 allows remote attackers to cause a denial of service (crash) via a large compression method value in the central directory file header.

Read the notes from the security team

Status

Package Ubuntu Release Status
unzip 20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful Ignored end of life
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 6.0-20ubuntu1.1
14.04 LTS trusty
12.04 LTS precise Ignored end of life

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Notes

tyhicks

In Ubuntu, this is reduced to a DoS thanks to zipinfo being built with -D_FORTIFY_SOURCE=2 See LP: #1643750 for a reproducer

Severity score breakdown

Parameter Value
Base score 4.0 · Medium
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L