USN-6744-1 fixed a vulnerability in Pillow (Python 3). This update
provides the corresponding updates for Pillow (Python 2) in
Ubuntu 20.04 LTS.
Original advisory details:
Hugo van Kemenade discovered that Pillow was not properly performing
bounds checks when processing an ICC file, which could lead to a buffer
overflow. If a user or automated system were tricked into processing a
specially crafted ICC file, an attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.
Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk discovered that LXD
incorrectly handled the handshake phase and the use of sequence numbers in SSH
Binary Packet Protocol (BPP). If a user or an automated system were tricked
into opening a specially crafted input file, a remote attacker could possibly
use this issue to bypass integrity checks.
Hugo van Kemenade discovered that Pillow was not properly performing
bounds checks when processing an ICC file, which could lead to a buffer
overflow. If a user or automated system were tricked into processing a
specially crafted ICC file, an attacker could possibly use this issue
to cause a denial of service or execute arbitrary code.
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Google cAdvisor. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 5.3.
