Ubuntu Security Notice 4937-1 - Ondrej Holy discovered that GNOME Autoar could extract files outside of the intended directory. If a user were tricked into extracting a specially crafted archive, a remote attacker could create files in arbitrary locations, possibly leading to code execution.
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Ubuntu Security Notice USN-4937-1
May 06, 2021
gnome-autoar vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
GNOME Autoar could be made to overwrite files.
Software Description:
- gnome-autoar: Archive integration support for GNOME
Details:
Ondrej Holy discovered that GNOME Autoar could extract files outside of the
intended directory. If a user were tricked into extracting a specially
crafted archive, a remote attacker could create files in arbitrary
locations, possibly leading to code execution.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
libgnome-autoar-0-0 0.2.4-2ubuntu0.3
libgnome-autoar-gtk-0-0 0.2.4-2ubuntu0.3
Ubuntu 20.04 LTS:
libgnome-autoar-0-0 0.2.3-2ubuntu0.3
libgnome-autoar-gtk-0-0 0.2.3-2ubuntu0.3
Ubuntu 18.04 LTS:
libgnome-autoar-0-0 0.2.3-1ubuntu0.3
libgnome-autoar-gtk-0-0 0.2.3-1ubuntu0.3
After a standard system update you need to restart your session to make all
the necessary changes.
References:
https://ubuntu.com/security/notices/USN-4937-1
CVE-2021-28650
Package Information:
https://launchpad.net/ubuntu/+source/gnome-autoar/0.2.4-2ubuntu0.3
https://launchpad.net/ubuntu/+source/gnome-autoar/0.2.3-2ubuntu0.3
https://launchpad.net/ubuntu/+source/gnome-autoar/0.2.3-1ubuntu0.3