Vulnerabilities > CVE-2021-21042 - Out-of-bounds Read vulnerability in Adobe products

CVSS 6.5 - MEDIUM

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

network

low complexity

adobe

CWE-125

NVD

Published: 2021-02-11

Updated: 2023-11-07

Summary

Acrobat Reader DC versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Read vulnerability that could lead to arbitrary disclosure of information in the memory stack. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Vulnerable Configurations

Part	Description	Count
Application	Adobe Adobe Acrobat 17.000.0000 Adobe Acrobat 17.011.30056 Adobe Acrobat 17.011.30059 Adobe Acrobat 17.011.30065 Adobe Acrobat 17.011.30066 Adobe Acrobat 17.011.30068 Adobe Acrobat 17.011.30070 Adobe Acrobat 17.011.30078 Adobe Acrobat 17.011.30079 Adobe Acrobat 17.011.30080 Adobe Acrobat 17.011.30096 Adobe Acrobat 17.011.30099 Adobe Acrobat 17.011.30102 Adobe Acrobat 17.011.30105 Adobe Acrobat 17.011.30106 Adobe Acrobat 17.011.30110 Adobe Acrobat 17.011.30113 Adobe Acrobat 17.011.30120 Adobe Acrobat 17.011.30127 Adobe Acrobat 17.011.30138 Adobe Acrobat 17.011.30140 Adobe Acrobat 17.011.30142 Adobe Acrobat 17.011.30143 Adobe Acrobat 17.011.30180 Adobe Acrobat 17.011.30188 Adobe Acrobat 20.0 Adobe Acrobat 20.001.3005 Adobe Acrobat 20.001.30005 Adobe Acrobat 20.001.30010 Adobe Acrobat 20.001.30018 Adobe Acrobat DC 15.000.0000 Adobe Acrobat DC 15.007.20033 Adobe Acrobat DC 15.008.20082 Adobe Acrobat DC 15.009.20069 Adobe Acrobat DC 15.009.20071 Adobe Acrobat DC 15.009.20077 Adobe Acrobat DC 15.009.20079 Adobe Acrobat DC 15.010.20056 Adobe Acrobat DC 15.010.20059 Adobe Acrobat DC 15.010.20060 Adobe Acrobat DC 15.016.20039 Adobe Acrobat DC 15.016.20041 Adobe Acrobat DC 15.016.20045 Adobe Acrobat DC 15.017.20050 Adobe Acrobat DC 15.017.20053 Adobe Acrobat DC 15.020.20039 Adobe Acrobat DC 15.020.20042 Adobe Acrobat DC 15.023.20053 Adobe Acrobat DC 15.023.20056 Adobe Acrobat DC 15.023.20070 Adobe Acrobat DC 17.000.0000 Adobe Acrobat DC 17.009.20044 Adobe Acrobat DC 17.009.20058 Adobe Acrobat DC 17.012.20093 Adobe Acrobat DC 17.012.20095 Adobe Acrobat DC 17.012.20096 Adobe Acrobat DC 17.012.20098 Adobe Acrobat DC 18.0 Adobe Acrobat DC 18.009.20044 Adobe Acrobat DC 18.009.20050 Adobe Acrobat DC 18.011.20035 Adobe Acrobat DC 18.011.20038 Adobe Acrobat DC 18.011.20040 Adobe Acrobat DC 18.011.20055 Adobe Acrobat DC 18.011.20058 Adobe Acrobat DC 18.011.20063 Adobe Acrobat DC 19.008.20071 Adobe Acrobat DC 19.008.20074 Adobe Acrobat DC 19.008.20080 Adobe Acrobat DC 19.008.20081 Adobe Acrobat DC 19.010.20064 Adobe Acrobat DC 19.010.20069 Adobe Acrobat DC 19.010.20091 Adobe Acrobat DC 19.010.20098 Adobe Acrobat DC 19.010.20099 Adobe Acrobat DC 19.010.20100 Adobe Acrobat DC 19.012.20034 Adobe Acrobat DC 19.012.20035 Adobe Acrobat DC 19.012.20036 Adobe Acrobat DC 19.021.20047 Adobe Acrobat DC 19.021.20056 Adobe Acrobat DC 19.021.20058 Adobe Acrobat DC 19.021.20061 Adobe Acrobat DC 20.006.20042 Adobe Acrobat DC 20.009.20074 Adobe Acrobat DC 20.012.20048 Adobe Acrobat DC 20.013.20066 Adobe Acrobat DC 20.013.20074 Adobe Acrobat Reader 17.000.0000 Adobe Acrobat Reader 17.011.30059 Adobe Acrobat Reader 17.011.30065 Adobe Acrobat Reader 17.011.30066 Adobe Acrobat Reader 17.011.30068 Adobe Acrobat Reader 17.011.30070 Adobe Acrobat Reader 17.011.30078 Adobe Acrobat Reader 17.011.30079 Adobe Acrobat Reader 17.011.30080 Adobe Acrobat Reader 17.011.30096 Adobe Acrobat Reader 17.011.30099 Adobe Acrobat Reader 17.011.30102 Adobe Acrobat Reader 17.011.30105 Adobe Acrobat Reader 17.011.30106 Adobe Acrobat Reader 17.011.30110 Adobe Acrobat Reader 17.011.30113 Adobe Acrobat Reader 17.011.30120 Adobe Acrobat Reader 17.011.30127 Adobe Acrobat Reader 17.011.30138 Adobe Acrobat Reader 17.011.30140 Adobe Acrobat Reader 17.011.30142 Adobe Acrobat Reader 17.011.30180 Adobe Acrobat Reader 17.011.30188 Adobe Acrobat Reader 20.0 Adobe Acrobat Reader 20.001.3005 Adobe Acrobat Reader 20.001.30005 Adobe Acrobat Reader 20.001.30010 Adobe Acrobat Reader 20.001.30018 Adobe Acrobat Reader 20.001.30020 Adobe Acrobat Reader 20.001.30025 Adobe Acrobat Reader 20.001.300183 Adobe Acrobat Reader DC 15.000.0000 Adobe Acrobat Reader DC 15.007.20033 Adobe Acrobat Reader DC 15.008.20082 Adobe Acrobat Reader DC 15.009.20069 Adobe Acrobat Reader DC 15.009.20071 Adobe Acrobat Reader DC 15.009.20077 Adobe Acrobat Reader DC 15.009.20079 Adobe Acrobat Reader DC 15.010.20056 Adobe Acrobat Reader DC 15.010.20059 Adobe Acrobat Reader DC 15.010.20060 Adobe Acrobat Reader DC 15.016.20039 Adobe Acrobat Reader DC 15.016.20041 Adobe Acrobat Reader DC 15.016.20045 Adobe Acrobat Reader DC 15.017.20050 Adobe Acrobat Reader DC 15.017.20053 Adobe Acrobat Reader DC 15.020.20039 Adobe Acrobat Reader DC 15.020.20042 Adobe Acrobat Reader DC 15.023.20053 Adobe Acrobat Reader DC 15.023.20056 Adobe Acrobat Reader DC 15.023.20070 Adobe Acrobat Reader DC 17.000.0000 Adobe Acrobat Reader DC 17.009.20044 Adobe Acrobat Reader DC 17.009.20058 Adobe Acrobat Reader DC 17.012.20093 Adobe Acrobat Reader DC 17.012.20095 Adobe Acrobat Reader DC 17.012.20098 Adobe Acrobat Reader DC 18.0 Adobe Acrobat Reader DC 18.009.20044 Adobe Acrobat Reader DC 18.009.20050 Adobe Acrobat Reader DC 18.011.20035 Adobe Acrobat Reader DC 18.011.20038 Adobe Acrobat Reader DC 18.011.20040 Adobe Acrobat Reader DC 18.011.20055 Adobe Acrobat Reader DC 18.011.20063 Adobe Acrobat Reader DC 19.008.20071 Adobe Acrobat Reader DC 19.008.20074 Adobe Acrobat Reader DC 19.008.20080 Adobe Acrobat Reader DC 19.008.20081 Adobe Acrobat Reader DC 19.010.20064 Adobe Acrobat Reader DC 19.010.20069 Adobe Acrobat Reader DC 19.010.20091 Adobe Acrobat Reader DC 19.010.20098 Adobe Acrobat Reader DC 19.010.20099 Adobe Acrobat Reader DC 19.010.20100 Adobe Acrobat Reader DC 19.012.20034 Adobe Acrobat Reader DC 19.012.20035 Adobe Acrobat Reader DC 19.012.20036 Adobe Acrobat Reader DC 19.021.20047 Adobe Acrobat Reader DC 19.021.20056 Adobe Acrobat Reader DC 19.021.20058 Adobe Acrobat Reader DC 19.021.20061 Adobe Acrobat Reader DC 20.006.20042 Adobe Acrobat Reader DC 20.009.20074 Adobe Acrobat Reader DC 20.012.20048 Adobe Acrobat Reader DC 20.013.20066 Adobe Acrobat Reader DC 20.013.20074	175
OS	Apple Apple Macos -	1
OS	Microsoft Microsoft Windows -	1

Common Weakness Enumeration (CWE)

CWE-125 - Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

References

https://helpx.adobe.com/security/products/acrobat/apsb21-09.html