USN-3913-1: P7ZIP vulnerabilities

Publication date

21 March 2019

Overview

p7zip could be made to crash or run programs as your login if it opened a specially crafted file.

Releases


Packages

  • p7zip - 7z file archiver with high compression ratio

Details

It was discovered that p7zip did not correctly handle certain malformed
archives. If a user or automated system were tricked into processing a specially
crafted archive with p7zip, then p7zip could be made to crash, possibly leading
to abitrary code execution.

It was discovered that p7zip did not correctly handle certain malformed
archives. If a user or automated system were tricked into processing a specially
crafted archive with p7zip, then p7zip could be made to crash, possibly leading
to abitrary code execution.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 xenial p7zip –  9.20.1~dfsg.1-4.2ubuntu0.1
p7zip-full –  9.20.1~dfsg.1-4.2ubuntu0.1

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