Out-of-Bounds Affecting exim4 package, versions <4.92-8+deb10u6
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.51% (77th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN10-EXIM4-1279449
- published 5 May 2021
- disclosed 6 May 2021
Introduced: 5 May 2021
CVE-2020-28024 Open this link in a new tabHow to fix?
Upgrade Debian:10
exim4
to version 4.92-8+deb10u6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4
package and not the exim4
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.