Pillow up to 8.0.x PCX File PcxDecode buffer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Pillow up to 8.0.x. This issue affects the function PcxDecode of the component PCX File Handler. The manipulation results in buffer overflow. This vulnerability is reported as CVE-2020-35653. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Pillow up to 8.0.x. It has been classified as critical. Affected is the function PcxDecode of the component PCX File Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 01/12/2021. The advisory is available at pillow.readthedocs.io. This vulnerability is traded as CVE-2020-35653. Technical details are known, but there is no available exploit.

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 8.1.0 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

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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 8.1.0

Timelineinfo

12/23/2020 🔍
01/12/2021 +20 days 🔍
01/12/2021 +0 days 🔍
03/31/2026 +1904 days 🔍

Sourcesinfo

Advisory: pillow.readthedocs.io
Status: Confirmed

CVE: CVE-2020-35653 (🔍)
GCVE (CVE): GCVE-0-2020-35653
GCVE (VulDB): GCVE-100-167622
CERT Bund: WID-SEC-2022-1835 - Red Hat Enterprise Linux (python-pillow): Mehrere Schwachstellen

Entryinfo

Created: 01/12/2021 13:59
Updated: 03/31/2026 18:54
Changes: 01/12/2021 13:59 (39), 02/11/2021 17:47 (5), 02/11/2021 17:51 (18), 05/18/2025 20:08 (17), 03/31/2026 18:54 (7)
Complete: 🔍
Cache ID: 216:EF1:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!