Vulnerability identifier: #VU79193

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38238

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Reader
Client/Desktop applications / Office applications
Adobe Acrobat
Client/Desktop applications / Office applications

Vendor: Adobe

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a use-after-free error when parsing embedded fonts. A remote attacker can trick the victim to open a specially crafted PDF file, trigger a memory leak and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Reader: 20.005.30331 - 2020.013.20074, 21.001.20135, 21.001.20149, 21.001.20150, 21.001.20155, 21.005.20054, 21.005.20058, 21.005.20060, 21.005.20148, 21.007.20091, 21.007.20095, 21.007.20096, 21.007.20099, 21.011.20039, 22.001.20085 - 22.003.20322, 23.001.20064 - 23.003.20244

Adobe Acrobat: 15.006.30306 - 15.006.30527, 17.008.30051 - 17.012.30229, 18.009.20044, 18.009.20050, 18.011.20035, 18.011.20038, 18.011.20040, 18.011.20055, 18.011.20058, 18.011.20063, 19.008.20071, 19.008.20080, 19.008.20081, 19.010.20064, 19.010.20069, 19.010.20091, 19.010.20098, 19.010.20100, 19.012.20034, 19.012.20035, 19.012.20036, 19.012.20040, 19.021.20047, 19.021.20056, 19.021.20058, 19.021.20061, 20.001.30002 - 20.013.20074, 21.001.201 - 21.011.20039, 22.001.20085 - 22.003.20322, 23.001.20064 - 23.003.20244

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External links
http://helpx.adobe.com/security/products/acrobat/apsb23-30.html
http://www.zerodayinitiative.com/advisories/ZDI-23-1070/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.