Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : Pillow vulnerabilities (USN-4763-1)

critical Nessus Plugin ID 147998

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4763-1 advisory.

- An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654. (CVE-2021-25289)

- An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is a negative-offset memcpy with an invalid size. (CVE-2021-25290)

- An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is an out-of-bounds read in TiffreadRGBATile via invalid tile boundaries. (CVE-2021-25291)

- An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex. (CVE-2021-25292)

- An issue was discovered in Pillow before 8.1.1. There is an out-of-bounds read in SGIRleDecode.c.
(CVE-2021-25293)

- Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large. (CVE-2021-27921)

- Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large. (CVE-2021-27922)

- Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large. (CVE-2021-27923)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4763-1

Plugin Details

Severity: Critical

ID: 147998

File Name: ubuntu_USN-4763-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/23/2021

Updated: 3/30/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2021-25289

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.10, p-cpe:/a:canonical:ubuntu_linux:python-imaging, p-cpe:/a:canonical:ubuntu_linux:python-pil, p-cpe:/a:canonical:ubuntu_linux:python-pil.imagetk, p-cpe:/a:canonical:ubuntu_linux:python3-pil, p-cpe:/a:canonical:ubuntu_linux:python3-pil.imagetk

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/11/2021

Vulnerability Publication Date: 3/3/2021

Reference Information

CVE: CVE-2021-25289, CVE-2021-25290, CVE-2021-25291, CVE-2021-25292, CVE-2021-25293, CVE-2021-27921, CVE-2021-27922, CVE-2021-27923

USN: 4763-1