CVE-2021-35981

Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Use-after-free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://helpx.adobe.com/security/products/acrobat/apsb21-51.html	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:adobe:acrobat_dc:::::continuous:::*
	cpe:2.3:a:adobe:acrobat_dc:::::classic:::*
	cpe:2.3:a:adobe:acrobat_dc:::::classic:::*
	cpe:2.3:a:adobe:acrobat_reader_dc:::::continuous:::*
	cpe:2.3:a:adobe:acrobat_reader_dc:::::classic:::*
	cpe:2.3:a:adobe:acrobat_reader_dc:::::classic:::*

History

No history.

Information

Published : 2021-08-20 19:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-35981

Mitre link : CVE-2021-35981

CVE.ORG link : CVE-2021-35981

JSON object : View

Products Affected

adobe

acrobat_reader_dc
acrobat_dc

CWE

CWE-416

Use After Free

{"id": "CVE-2021-35981", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "psirt@adobe.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-08-20T19:15:09.777", "references": [{"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-51.html", "tags": ["Release Notes", "Vendor Advisory"], "source": "psirt@adobe.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "psirt@adobe.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Use-after-free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."}, {"lang": "es", "value": "Acrobat Reader DC versiones 2021.005.20054 (y anteriores), 2020.004.30005 (y anteriores), y 2017.011.30197 (y anteriores), est\u00e1n afectadas por una vulnerabilidad de uso de memoria previamente liberada. Un atacante no autenticado podr\u00eda aprovechar esta vulnerabilidad para lograr una ejecuci\u00f3n de c\u00f3digo arbitrario en el contexto del usuario actual. Una explotaci\u00f3n de este problema requiere una interacci\u00f3n del usuario, ya que la v\u00edctima debe abrir un archivo malicioso."}], "lastModified": "2021-09-01T01:16:14.720", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*", "vulnerable": true, "matchCriteriaId": "4A62CC78-7097-4825-8B08-2212B11E1F18", "versionEndIncluding": "21.005.20054", "versionStartIncluding": "15.008.20082"}, {"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*", "vulnerable": true, "matchCriteriaId": "7FDBB717-4658-426A-A98A-DA88EC0515B5", "versionEndIncluding": "17.011.30197", "versionStartIncluding": "17.011.30059"}, {"criteria": "cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:classic:*:*:*", "vulnerable": true, "matchCriteriaId": "08E31636-C406-4C4B-8F1D-E9DFD5572FF9", "versionEndIncluding": "20.004.30005", "versionStartIncluding": "20.001.30005"}, {"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*", "vulnerable": true, "matchCriteriaId": "1EC1FC1B-592F-4635-A71C-1DCFAD3063DC", "versionEndIncluding": "21.005.20054", "versionStartIncluding": "15.008.20082"}, {"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*", "vulnerable": true, "matchCriteriaId": "D92E01B2-E4D3-414F-8852-294499AE4226", "versionEndIncluding": "17.011.30197", "versionStartIncluding": "17.011.30059"}, {"criteria": "cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:classic:*:*:*", "vulnerable": true, "matchCriteriaId": "B78681E4-7FA9-4D05-9A5B-1B19097B5C41", "versionEndIncluding": "20.004.30005", "versionStartIncluding": "20.001.30005"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@adobe.com"}