PT-2021-5520 · Adobe · Photoshop

Published 2021-12-14 · Updated 2023-09-12 · CVE-2021-43018

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Adobe Photoshop versions 23.0.2 and 22.5.4 (and earlier)

Description The issue is related to an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction, where a victim must open a malicious JPG file. The vulnerability is also associated with the processing of PSD files, which could allow an attacker to execute arbitrary code using a specially crafted malicious PSD file.

Recommendations For Adobe Photoshop versions 23.0.2 and 22.5.4 (and earlier), consider avoiding the use of potentially malicious JPG and PSD files until a patch is available. As a temporary workaround, restrict the opening of files from untrusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-06370

CVE-2021-43018

ZDI-21-1560

Affected Products

Photoshop

References · 11

• https://bdu.fstec.ru/vul/2021-06370 · Security Note
• https://helpx.adobe.com/security/products/photoshop/apsb21-113.html · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-1560 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43018 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43018 · Security Note
• https://twitter.com/cracbot/status/1700026235915817202 · Twitter Post
• https://cybersecurity-help.cz/vdb/SB2021121490 · Note
• https://t.me/cibsecurity/70071 · Telegram Post
• https://t.me/true_secator/2449 · Telegram Post
• https://securitylab.ru/vulnerability/527604.php · Note
• https://twitter.com/CVEnew/status/1699774265363456223 · Twitter Post