Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-5190: Out-of-bounds write in the streaming decoder component in aws-c-event-stream before 0.6.0 might allow a third party operating a server to cause memory corruption leading to arbitrary code execution on a client application that processes crafted event-stream messages. To remediate this issue, users should upgrade to version 0.6.0 or later. CVE-2026-12043: Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execution, via a crafted sequence of HTTP/2 HEADERS frames. To remediate this issue, users should upgrade to aws-c-http version 0.11.0.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | python-awscrt-debugsource | 0:0.36.4-1.amzn2023.0.2 |
| Amazon Linux · 2023 | python3-awscrt | 0:0.36.4-1.amzn2023.0.2 |
| Amazon Linux · 2023 | python3-awscrt-debuginfo | 0:0.36.4-1.amzn2023.0.2 |
Vulnerabilities 2
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High 8.8
Heap double-free in AWS Common Runtime aws-c-http
Improper handling of HPACK dynamic table size updates in the AWS Common Runtime aws-c-http library might allow a remote threat actor operating a server to cause memory corruption on a connecting client application, potentially leading to arbitrary code execut…
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High 7.5
AWS C Event Stream Streaming Decoder Stack Buffer Overflow
Out-of-bounds write in the streaming decoder component in aws-c-event-stream before 0.6.0 might allow a third party operating a server to cause memory corruption leading to arbitrary code execution on a client application that processes crafted event-stream m…