Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-19654: A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.
Fixed packages 23
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | rsyslog | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-crypto | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-crypto-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-debugsource | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-doc | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-elasticsearch | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-elasticsearch-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-logrotate | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmaudit | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmaudit-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmfields | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmfields-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmjsonparse | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmjsonparse-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmkubernetes | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmkubernetes-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmnormalize | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmnormalize-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmtaghostname | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-mmtaghostname-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-openssl | 0:8.2204.0-3.amzn2023.0.5 |
| Amazon Linux · 2023 | rsyslog-openssl-debuginfo | 0:8.2204.0-3.amzn2023.0.5 |
Vulnerabilities 1
-
High 7.5
Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity …
References
-
web
https://alas.aws.amazon.com/cve/html/CVE-2026-19654.html