title: Adobe Acrobat Reader out-of-bounds read in PDFLibTool could lead to information exposure
description: Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an Out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to leak sensitive system information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
problem types: Out-of-bounds Read (CWE-125)
affected:
{
product: Acrobat Reader
vendor: Adobe
versions:
lessThanOrEqual: 2020.001.30020, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 2021.001.20150, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 2017.011.30194, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: None, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
version: 3.1
]