PT-2021-5662 · Adobe · Lightroom

Published 2021-12-14 · Updated 2023-09-14 · CVE-2021-43753

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 Lightroom versions 4.4 and earlier

Description The issue is related to a use-after-free vulnerability in the processing of parsing TIF files, which could result in privilege escalation. Exploitation of this issue requires user interaction, where a victim must open a malicious file. This vulnerability may allow a remote attacker to gain access to confidential information.

Recommendations For Adobe Lightroom versions 4.4 and earlier, consider avoiding the use of TIF file parsing functionality until a patch is available. As a temporary workaround, restrict the opening of TIF 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.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2022-00101

CVE-2021-43753

ZDI-21-1581

Affected Products

Lightroom

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-43753 · Security Note
• https://bdu.fstec.ru/vul/2022-00101 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1581 · Security Note
• https://helpx.adobe.com/security/products/lightroom/apsb21-119.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43753 · Vendor Advisory
• https://helpx.adobe.com/ru/security/products/lightroom/apsb21-119.html · Note
• https://t.me/cibsecurity/70059 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021121608 · Note
• https://twitter.com/CVEnew/status/1699774268593078424 · Twitter Post