CVE-2020-28018

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-28018
Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://www.openwall.com/lists/oss-security/2021/05/11/14 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/15 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/17 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/5 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/6 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/12/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/12/3 Mailing List Third Party Advisory
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
History

26 May 2021, 19:34

Type Values Removed Values Added
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/5 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/5 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/2 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/2 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/15 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/15 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/14 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/14 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/6 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/6 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/17 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/17 - Mailing List, Third Party Advisory
References (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/3 - (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/3 - Mailing List, Third Party Advisory

13 May 2021, 03:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/3 -

12 May 2021, 18:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/12/2 -

12 May 2021, 00:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/15 -
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/17 -
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/14 -

11 May 2021, 15:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/5 -
  • (MLIST) http://www.openwall.com/lists/oss-security/2021/05/11/6 -

10 May 2021, 17:43

Type Values Removed Values Added
CPE cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
References (MISC) https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt - (MISC) https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt - Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8
CWE CWE-416

06 May 2021, 13:16

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-06 13:15

Updated : 2023-12-10 13:55

NVD link : CVE-2020-28018

Mitre link : CVE-2020-28018

CVE.ORG link : CVE-2020-28018

JSON object : View

Products Affected

exim

  • exim
CWE
CWE-416

Use After Free