VDB-170608 · CVE-2021-27921 · Nessus 236661

Pillow up to 8.1.0 BLP Container memory allocation

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Pillow up to 8.1.0 and classified as problematic. This impacts an unknown function of the component BLP Container. Executing a manipulation can lead to memory allocation. This vulnerability appears as CVE-2021-27921. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Pillow up to 8.1.0 and classified as problematic. This vulnerability affects an unknown code of the component BLP Container. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability.

The weakness was presented 03/04/2021. The advisory is shared for download at pillow.readthedocs.io. This vulnerability was named CVE-2021-27921. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236661 (Alibaba Cloud Linux 3 : 0012: python-pillow (ALINUX3-SA-2022:0012)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.1.1 eliminates this vulnerability. The upgrade is hosted for download at pillow.readthedocs.io.

The vulnerability is also documented in the databases at Tenable (236661) and CERT Bund (WID-SEC-2022-1835). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

Amazon Linux 2
Ubuntu Linux
SUSE Linux
Red Hat Enterprise Linux
Open Source Python

Productinfo

Name

Pillow

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 236661
Nessus Name: Alibaba Cloud Linux 3 : 0012: python-pillow (ALINUX3-SA-2022:0012)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Pillow 8.1.1

Timelineinfo

03/03/2021 🔍
03/04/2021 +1 days 🔍
03/04/2021 +0 days 🔍
03/31/2026 +1853 days 🔍

Sourcesinfo

Advisory: pillow.readthedocs.io
Status: Confirmed

CVE: CVE-2021-27921 (🔍)
GCVE (CVE): GCVE-0-2021-27921
GCVE (VulDB): GCVE-100-170608
CERT Bund: WID-SEC-2022-1835 - Red Hat Enterprise Linux (python-pillow): Mehrere Schwachstellen

Entryinfo

Created: 03/04/2021 06:47
Updated: 03/31/2026 20:30
Changes: 03/04/2021 06:47 (38), 03/06/2021 13:44 (5), 03/14/2021 13:15 (18), 05/18/2025 20:08 (17), 08/15/2025 08:11 (1), 03/31/2026 20:30 (7)
Complete: 🔍
Cache ID: 216:DB8:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.