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Low ALAS2-2024-2405 1 CVE

Low: perl-HTTP-Daemon security update (Amazon Linux 2)

Published Jan 3, 2024 · Updated Jan 9, 2024

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2022-31081: HTTP::Daemon is a simple http server class written in perl. Versions prior to 6.15 are subject to a vulnerability which could potentially be exploited to gain privileged access to APIs or poison intermediate caches. It is uncertain how large the risks are, most Perl based applications are served on top of Nginx or Apache, not on the `HTTP::Daemon`. This library is commonly used for local development and tests. Users are advised to update to resolve this issue. Users unable to upgrade may add additional request handling logic as a mitigation. After calling `my $rqst = $conn->get_request()` one could inspect the returned `HTTP::Request` object. Querying the 'Content-Length' (`my $cl = $rqst->header('Content-Length')`) will show any abnormalities that should be dealt with by a `400` response. Expected strings of 'Content-Length' SHOULD consist of either a single non-negative integer, or, a comma separated repetition of that number. (that is `42` or `42, 42, 42`). Anything else MUST be rejected.

Fixed packages 1

ReleasePackageFixed in
Amazon Linux · 2 perl-HTTP-Daemon 0:6.01-8.amzn2.0.1

Vulnerabilities 1

  • High 7.3

    Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in HTTP::Daemon

    HTTP::Daemon is a simple http server class written in perl. Versions prior to 6.15 are subject to a vulnerability which could potentially be exploited to gain privileged access to APIs or poison intermediate caches. It is uncertain how large the risks are, mo…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-31081.html