Detections
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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Pillow vulnerabilities (USN-8135-1)

critical Nessus Plugin ID 304431

Synopsis

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

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8135-1 advisory.

 It was discovered that Pillow did not correctly handle reading J2K files, which could lead to an out-of- bounds read vulnerability. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2021-25287, CVE-2021-25288)

 It was discovered that Pillow did not correctly handle certain integer arithmetic, which could lead to a buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2021-25290)

 It was discovered that Pillow did not correctly perform bounds checking for certain operations. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2021-28675, CVE-2021-28676, CVE-2021-28677)

 It was discovered that Pillow did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-44271)

 It was discovered that Pillow did not correctly sanitize certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2023-50447)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues 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-8135-1

Plugin Details

Severity: Critical

ID: 304431

File Name: ubuntu_USN-8135-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/31/2026

Updated: 3/31/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2021-25288

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2023-50447

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python-imaging-tk, p-cpe:/a:canonical:ubuntu_linux:python-sane, p-cpe:/a:canonical:ubuntu_linux:python3-pil.imagetk, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-imaging-sane, p-cpe:/a:canonical:ubuntu_linux:python-imaging-compat, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-imaging-tk, p-cpe:/a:canonical:ubuntu_linux:python3-sane, p-cpe:/a:canonical:ubuntu_linux:python-imaging-sane, p-cpe:/a:canonical:ubuntu_linux:python3-pil, p-cpe:/a:canonical:ubuntu_linux:python-pil, p-cpe:/a:canonical:ubuntu_linux:python-imaging, p-cpe:/a:canonical:ubuntu_linux:python3-imaging, p-cpe:/a:canonical:ubuntu_linux:python-pil.imagetk

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2026

Vulnerability Publication Date: 3/6/2021

Reference Information

CVE: CVE-2021-25287, CVE-2021-25288, CVE-2021-25290, CVE-2021-28675, CVE-2021-28676, CVE-2021-28677, CVE-2023-44271, CVE-2023-50447

USN: 8135-1