USN-3913-1: P7ZIP vulnerabilities

Releases

• Ubuntu 16.04 ESM

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.

Update instructions

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

Ubuntu 16.04

• p7zip - 9.20.1~dfsg.1-4.2ubuntu0.1
• p7zip-full - 9.20.1~dfsg.1-4.2ubuntu0.1

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

References

• CVE-2016-2335
• CVE-2017-17969