title: ZDI-CAN-21243: Adobe Acrobat Reader DC Font Parsing Use-After-Free Information Disclosure Vulnerability
description: Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by a Use-After-Free vulnerability that could lead to disclosure of sensitive memory. 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.
problem types: Use After Free (CWE-416)
affected:
{
defaultStatus: affected
product: Acrobat Reader
vendor: Adobe
versions:
lessThanOrEqual: 23.003.20244, status: affected, version: 0, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
availabilityRequirement: NOT_DEFINED
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: HIGH
confidentialityRequirement: NOT_DEFINED
environmentalScore: 5.5
environmentalSeverity: MEDIUM
exploitCodeMaturity: NOT_DEFINED
integrityImpact: NONE
integrityRequirement: NOT_DEFINED
modifiedAttackComplexity: LOW
modifiedAttackVector: LOCAL
modifiedAvailabilityImpact: NONE
modifiedConfidentialityImpact: HIGH
modifiedIntegrityImpact: NONE
modifiedPrivilegesRequired: NONE
modifiedScope: NOT_DEFINED
modifiedUserInteraction: REQUIRED
privilegesRequired: NONE
remediationLevel: NOT_DEFINED
reportConfidence: NOT_DEFINED
scope: UNCHANGED
temporalScore: 5.5
temporalSeverity: MEDIUM
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL