CVEvulnerability
CVE-2020-28018
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-05-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-416
Description
Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.
Affected configurations
• exim exim (>= 4.90 < 4.94.2)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- 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
- 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