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Debian Security Advisory DSA 3538-1 (libebml - security update)

Information

Severity

Severity

Critical

Family

Family

Debian 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

6 years ago

Modified

Modified

7 months ago

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Summary

Several vulnerabilities were discovered in libebml, a library for manipulating Extensible Binary Meta Language files. CVE-2015-8789 Context-dependent attackers could trigger a use-after-free vulnerability by providing a maliciously crafted EBML document. CVE-2015-8790 Context-dependent attackers could obtain sensitive information from the process's heap memory by using a maliciously crafted UTF-8 string. CVE-2015-8791 Context-dependent attackers could obtain sensitive information from the process's heap memory by using a maliciously crafted length value in an EBML id.

Affected Software

Affected Software

libebml on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.2-2+deb7u1. For the stable distribution (jessie), these problems have been fixed in version 1.3.0-2+deb8u1. For the testing (stretch) and unstable (sid) distributions, these problems have been fixed in version 1.3.3-1. We recommend that you upgrade your libebml packages.

Common Vulnerabilities and Exposures (CVE)

References

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

brew install --cask multipass

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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

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You need to allow the installer to gain Administrator privileges.

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