CVE-2022-35671

Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID CVE-2022-35671

CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

AFFECTED VENDORS Adobe

AFFECTED PRODUCTS Acrobat Reader DC

VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Adobe Acrobat Reader DC. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of embedded fonts. Crafted data in a font can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

ADDITIONAL DETAILS

Adobe has issued an update to correct this vulnerability. More details can be found at:

https://helpx.adobe.com/security/products/acrobat/apsb22-39.html

DISCLOSURE TIMELINE

2022-06-07 - Vulnerability reported to vendor

2022-08-18 - Coordinated public release of advisory

CREDIT Rocco Calvi (@TecR0c)