Multiple vulnerabilities in Adobe Reader and Acrobat



Published: 2021-06-08 | Updated: 2021-06-14
Risk High
Patch available YES
Number of vulnerabilities 5
CVE ID CVE-2021-28554
CVE-2021-28551
CVE-2021-28552
CVE-2021-28631
CVE-2021-28632
CWE ID CWE-125
CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Adobe Acrobat Reader DC
Client/Desktop applications / Office applications

Adobe Acrobat DC
Client/Desktop applications / Office applications

Adobe Acrobat Reader
Client/Desktop applications / Office applications

Adobe Acrobat
Client/Desktop applications / Office applications

Vendor Adobe

Security Advisory

1) Out-of-bounds read

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28554

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when processing relative paths. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger out-of-bounds read error and compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat Reader DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat Reader: 2017.011.30156, 2017.011.30158, 2017.011.30171, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

Adobe Acrobat: 2017.008.30051, 2017.011.30066, 2017.011.30068, 2017.011.30070, 2017.011.30078, 2017.011.30096, 2017.011.30102, 2017.011.30105, 2017.011.30120, 2017.011.30127, 2017.011.30148, 2017.011.30150, 2017.011.30152, 2017.011.30156, 2017.011.30158, 2017.011.30166, 2017.011.30171, 2017.011.30175, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

CPE External links

https://helpx.adobe.com/security/products/acrobat/apsb21-37.html
https://www.zerodayinitiative.com/advisories/ZDI-21-659/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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

2) Out-of-bounds read

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28551

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger out-of-bounds read error and compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat Reader DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat Reader: 2017.011.30156, 2017.011.30158, 2017.011.30171, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

Adobe Acrobat: 2017.008.30051, 2017.011.30066, 2017.011.30068, 2017.011.30070, 2017.011.30078, 2017.011.30096, 2017.011.30102, 2017.011.30105, 2017.011.30120, 2017.011.30127, 2017.011.30148, 2017.011.30150, 2017.011.30152, 2017.011.30156, 2017.011.30158, 2017.011.30166, 2017.011.30171, 2017.011.30175, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

CPE External links

https://helpx.adobe.com/security/products/acrobat/apsb21-37.html

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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

3) Use-after-free

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28552

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when processing XFA templates. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat Reader DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat Reader: 2017.011.30156, 2017.011.30158, 2017.011.30171, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

Adobe Acrobat: 2017.008.30051, 2017.011.30066, 2017.011.30068, 2017.011.30070, 2017.011.30078, 2017.011.30096, 2017.011.30102, 2017.011.30105, 2017.011.30120, 2017.011.30127, 2017.011.30148, 2017.011.30150, 2017.011.30152, 2017.011.30156, 2017.011.30158, 2017.011.30166, 2017.011.30171, 2017.011.30175, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

CPE External links

https://helpx.adobe.com/security/products/acrobat/apsb21-37.html
https://www.zerodayinitiative.com/advisories/ZDI-21-661/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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

4) Use-after-free

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28631

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when processing AcroForm fields. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat Reader DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat Reader: 2017.011.30156, 2017.011.30158, 2017.011.30171, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

Adobe Acrobat: 2017.008.30051, 2017.011.30066, 2017.011.30068, 2017.011.30070, 2017.011.30078, 2017.011.30096, 2017.011.30102, 2017.011.30105, 2017.011.30120, 2017.011.30127, 2017.011.30148, 2017.011.30150, 2017.011.30152, 2017.011.30156, 2017.011.30158, 2017.011.30166, 2017.011.30171, 2017.011.30175, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

CPE External links

https://helpx.adobe.com/security/products/acrobat/apsb21-37.html
https://www.zerodayinitiative.com/advisories/ZDI-21-662/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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

5) Use-after-free

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-28632

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when processing AcroForm fields. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat Reader DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat DC: 2020.001.30020, 2020.001.30025, 2020.006.20034, 2020.006.20042, 2020.009.20063, 2020.009.20074, 2020.012.20041, 2020.012.20048, 2020.013.20064, 2020.013.20066, 2020.013.20074, 2021.001.20135, 2021.001.20149, 2021.001.20150, 2021.001.20155

Adobe Acrobat Reader: 2017.011.30156, 2017.011.30158, 2017.011.30171, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

Adobe Acrobat: 2017.008.30051, 2017.011.30066, 2017.011.30068, 2017.011.30070, 2017.011.30078, 2017.011.30096, 2017.011.30102, 2017.011.30105, 2017.011.30120, 2017.011.30127, 2017.011.30148, 2017.011.30150, 2017.011.30152, 2017.011.30156, 2017.011.30158, 2017.011.30166, 2017.011.30171, 2017.011.30175, 2017.011.30180, 2017.011.30188, 2017.011.30190, 2017.011.30194, 2017.011.30196

CPE External links

https://helpx.adobe.com/security/products/acrobat/apsb21-37.html
https://www.zerodayinitiative.com/advisories/ZDI-21-663/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

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



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