CVE-2023-21586: acrobat Null Dereference — Fix

Description

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a NULL Pointer Dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
microsoft	windows	All
adobe	acrobat_dc	15.008.20082 — 22.003.20282
adobe	acrobat_reader_dc	15.008.20082 — 22.003.20282
apple	macos	All
adobe	acrobat_dc	15.008.20082 — 22.003.20281
adobe	acrobat_reader_dc	15.008.20082 — 22.003.20281
apple	macos	All
microsoft	windows	All
adobe	acrobat	20.001.30005 — 20.005.30418
adobe	acrobat_reader	20.001.30005 — 20.005.30418

References

Advisories & Patches

https://helpx.adobe.com/security/products/acrobat/apsb23-01.html

Frequently Asked Questions

What is CVE-2023-21586? +

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a NULL Pointer Dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-21586? +

CVE-2023-21586 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-21586? +

CVE-2023-21586 affects products from adobe, apple, microsoft, specifically: acrobat, acrobat_dc, acrobat_reader, acrobat_reader_dc, macos, windows. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-21586? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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