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Ubuntu 18.10: USN-3857-1 Critical: PHP PEAR Remote Code Execution

ubuntu
Calendar Grey January 14, 2019
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-3858-1 outlines how to mitigate risks from a php-pear vulnerability affecting multiple Ubuntu versions, offering update guidance and precautions
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Summary

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PEAR could be made to run programs if it processed a specially crafted

file.

Software Description:

- php-pear: PHP Extension and Application Repository

Details:

Fariskhi Vidyan discovered that PEAR Archive_Tar incorrectly handled

certain archive paths. A remote attacker could possibly use this issue to

execute arbitrary code.

Topics%20covered

Topics Covered

security advisory critical software update remote code execution php-pear ubuntu archived path

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.10:
  php-pear                        1:1.10.5+submodules+notgz-1ubuntu1.18.10.1

Ubuntu 18.04 LTS:
  php-pear                        1:1.10.5+submodules+notgz-1ubuntu1.18.04.1

Ubuntu 16.04 LTS:
  php-pear                        1:1.10.1+submodules+notgz-6ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3857-1

CVE-2018-1000888

Severity
critical
Lowest
Low
Medium
High
Critical

January 14, 2019

Topics%20covered

Topics Covered

security advisory critical software update remote code execution php-pear ubuntu archived path

Package Information

https://launchpad.net/ubuntu/+source/php-pear/1:1.10.5+submodules+notgz-1ubuntu1.18.10.1
https://launchpad.net/ubuntu/+source/php-pear/1:1.10.5+submodules+notgz-1ubuntu1.18.04.1
https://launchpad.net/ubuntu/+source/php-pear/1:1.10.1+submodules+notgz-6ubuntu0.1

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