Detections
Analytics
Amazon Linux 2023 : python3-pillow, python3-pillow-devel, python3-pillow-tk (ALAS2023-2026-1985)
high Nessus Plugin ID 328480
Language:
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1985 advisory.Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py _load_bitmaps() read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling Image._decompression_bomb_check(), allowing crafted PCF font data to cause excessive memory allocation.
This issue is fixed in version 12.3.0. (CVE-2026-54059)
Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per- glyph images into a combined bitmap with Image.new(1, (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0. (CVE-2026-54060)
Pillow is a Python imaging library. Prior to 12.3.0, PIL/BdfFontFile.py bdf_char() read the BBX width and height field from a BDF font file and passed attacker-controlled dimensions to Image.new() without calling Image._decompression_bomb_check(), bypassing Pillow's documented decompression bomb protection and allowing excessive memory allocation. This issue is fixed in version 12.3.0. (CVE-2026-55379)
Pillow is a Python imaging library. Prior to 12.3.0, PIL/GdImageFile.py GdImageFile._open() read image dimensions from the GD 2.x header and stored them in self._size without calling Image._decompression_bomb_check(), allowing a crafted .gd file to trigger excessive C-heap allocation when loaded. This issue is fixed in version 12.3.0. (CVE-2026-55380)
Tenable has extracted the preceding description block directly from the tested product 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
Run 'dnf update python-pillow --releasever 2023.12.20260720' or or 'dnf update --advisory ALAS2023-2026-1985 --releasever 2023.12.20260720' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1985.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2026-54059.html
https://explore.alas.aws.amazon.com/CVE-2026-54060.html
Plugin Details
Severity: High
ID: 328480
File Name: al2023_ALAS2023-2026-1985.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 7/20/2026
Updated: 7/20/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.77
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-55380
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:python-pillow-debuginfo, p-cpe:/a:amazon:linux:python-pillow-debugsource, p-cpe:/a:amazon:linux:python3-pillow-debuginfo, p-cpe:/a:amazon:linux:python3-pillow-devel, p-cpe:/a:amazon:linux:python3-pillow-tk-debuginfo, p-cpe:/a:amazon:linux:python3-pillow-tk, p-cpe:/a:amazon:linux:python3-pillow
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/20/2026
Vulnerability Publication Date: 7/6/2026
Reference Information
CVE: CVE-2026-54059, CVE-2026-54060, CVE-2026-55379, CVE-2026-55380