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FreeBSD Security Advisory (FreeBSD-SA-11:04.compress.asc)

Information

Severity

Severity

Critical

Family

Family

FreeBSD Local Security Checks

CVSSv2 Base

CVSSv2 Base

9.3

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

3 years ago

Share

Summary

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-11:04.compress.asc

Insight

Insight

The compress utility reduces the size of files using adaptive Lempel-Ziv coding, or LZW coding, a lossless data compression algorithm. Both compress(1) and gzip(1) uses code derived from 4.3BSD compress(1). The code used to decompress a file created by compress(1) does not do sufficient boundary checks on compressed code words, allowing reference beyond the decompression table, which may result in a stack overflow or an infinite loop when the decompressor encounters a corrupted file.

Solution

Solution

Upgrade your system to the appropriate stable release or security branch dated after the correction date.

Common Vulnerabilities and Exposures (CVE)

References

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Automate with a few clicks your vulnerability scanning, assessment and management process

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1. Download Multipass

sudo snap install multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

3. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. If you don’t have it already, install Brew. Then, to install Multipass simply execute:

brew install --cask multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

2. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. Download the installer for Windows

Note: You need Windows 10 Pro/Enterprise/Education v 1803 or later, or any Windows 10 with VirtualBox

2. Ensure your network is private

Make sure your local network is designated as private, otherwise Windows prevents Multipass from starting.

3. Run the installer

You need to allow the installer to gain Administrator privileges.

4. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04

5. Log into the multipass instance

multipass shell mageni

6. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash