vulnerability
Ubuntu: (CVE-2020-9488): apache-log4j2 vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | Apr 27, 2020 | Nov 19, 2024 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Apr 27, 2020
Added
Nov 19, 2024
Modified
Mar 27, 2026
Description
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1
Solution
ubuntu-upgrade-apache-log4j2
References
- CVE-2020-9488
- https://attackerkb.com/topics/CVE-2020-9488
- CWE-295
- DEBIAN-DSA-5020
- EUVD-EUVD-2020-0518
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-0518
- https://gitbox.apache.org/repos/asf?p=logging-log4j2.git;h=6851b5083ef9610bae320bf07e1f24d2aa08851b
- https://gitbox.apache.org/repos/asf?p=logging-log4j2.git;h=fb91a3d71e2f3dadad6fd1beb2ab857f44fe8bbb
- https://issues.apache.org/jira/browse/LOG4J2-2819
- https://www.cve.org/CVERecord?id=CVE-2020-9488
- https://www.openwall.com/lists/oss-security/2020/04/25/1
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