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kasperskyKaspersky LabKLA12283
HistorySep 09, 2021 - 12:00 a.m.

KLA12283 Multiple vulnerabilities in Adobe Acrobat and Adobe Acrobat Reader

2021-09-0900:00:00
Kaspersky Lab
threats.kaspersky.com
208
adobe acrobat
adobe acrobat reader
vulnerabilities
arbitrary code
denial of service
sensitive information
uncontrolled search path
null pointer dereference
use after free
out of bounds
heap based buffer overflow
type confusion
stack based buffer overflow
information exposure
cve-2021-35982
cve-2021-39853
cve-2021-39859
cve-2021-39843
cve-2021-39840
cve-2021-39863
cve-2021-39861
cve-2021-39841
cve-2021-39845
cve-2021-39855
cve-2021-39844
cve-2021-39836
cve-2021-39852
cve-2021-39838
cve-2021-39851
cve-2021-39846
cve-2021-39837
cve-2021-39854
cve-2021-39857
cve-2021-39842
cve-2021-39860
cve-2021-39858
cve-2021-39849
cve-2021-39856
cve-2021-39839
cve-2021-39850
cve-2021-40726
cve-2021-40725
update.

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.4

Confidence

High

EPSS

0.116

Percentile

95.4%

Multiple vulnerabilities were found in Adobe Acrobat and Adobe Acrobat Reader. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service, obtain sensitive information.

Below is a complete list of vulnerabilities:

  1. A uncontrolled search path element vulnerability can be exploited to execute arbitrary code.
  2. A NULL pointer dereference vulnerability can be exploited to cause denial of service.
  3. A use after free vulnerability can be exploited to execute arbitrary code.
  4. An out of bounds write vulnerability can be exploited to cause denial of service.
  5. A heap based buffer overflow vulnerability can be exploited to execute arbitrary code.
  6. An out of bounds read vulnerability can be exploited to cause denial of service.
  7. A type confusion vulnerability can be expoited to execute arbitrary code.
  8. A stack based buffer overflow vulnerability can be exploited to execute arbitrary code.
  9. An information exposure vulnerability can be exploited to obtain sensitive information.
  10. An out of bounds read vulnerability can be exploited to obtain sensitive information.
  11. An use after free vulnerability can be exploited to execute arbitrary code.

Original advisories

APSB21-55

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Adobe-Acrobat-Reader-DC-Continuous

Adobe-Acrobat-DC-Continuous

Adobe-Acrobat-Reader-2017

Adobe-Acrobat-2017

Adobe-Acrobat-Reader-2020

Adobe-Acrobat-2020

CVE list

CVE-2021-35982 high

CVE-2021-39853 high

CVE-2021-39859 high

CVE-2021-39843 critical

CVE-2021-39840 critical

CVE-2021-39863 critical

CVE-2021-39861 high

CVE-2021-39841 critical

CVE-2021-39845 high

CVE-2021-39855 high

CVE-2021-39844 warning

CVE-2021-39836 critical

CVE-2021-39852 high

CVE-2021-39838 critical

CVE-2021-39851 high

CVE-2021-39846 high

CVE-2021-39837 critical

CVE-2021-39854 high

CVE-2021-39857 warning

CVE-2021-39842 critical

CVE-2021-39860 high

CVE-2021-39858 warning

CVE-2021-39849 high

CVE-2021-39856 high

CVE-2021-39839 critical

CVE-2021-39850 high

CVE-2021-40726 critical

CVE-2021-40725 critical

Solution

Update to the latest version

Download Adobe Acrobat Reader DC

Impacts

  • ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

  • OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

  • SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

  • Adobe Acrobat 2020 Classic earlier than 2020.004.30015Adobe Acrobat 2017 Classic earlier than 2017.011.30202Adobe Acrobat Reader 2020 Classic earlier than 2020.004.30015Adobe Acrobat Reader 2017 Classic earlier than 2017.011.30202Adobe Acrobat DC Continuous earlier than 2021.007.20091Adobe Acrobat Reader DC Continuous earlier than 2021.007.20091

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.4

Confidence

High

EPSS

0.116

Percentile

95.4%