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ALAS2-2023-2303

Related Vulnerabilities: CVE-2021-43565   CVE-2022-41723   CVE-2023-24538  

The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server. (CVE-2021-43565) http2/hpack: avoid quadratic complexity in hpack decoding (CVE-2022-41723) Templates did not properly consider backticks (`) as Javascript string delimiters, and as such didnot escape them as expected. Backticks are used, since ES6, for JS template literals. If a templatecontained a Go template action within a Javascript template literal, the contents of the action couldbe used to terminate the literal, injecting arbitrary Javascript code into the Go template. (CVE-2023-24538)

Source

ALAS2-2023-2303

Amazon Linux 2 Security Advisory: ALAS-2023-2303
Advisory Release Date: 2023-10-12 15:09 Pacific
Advisory Updated Date: 2023-10-19 23:41 Pacific
Severity: Important
Issue Overview:

The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server. (CVE-2021-43565)

http2/hpack: avoid quadratic complexity in hpack decoding (CVE-2022-41723)

Templates did not properly consider backticks (`) as Javascript string delimiters, and as such did
not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template
contained a Go template action within a Javascript template literal, the contents of the action could
be used to terminate the literal, injecting arbitrary Javascript code into the Go template. (CVE-2023-24538)


Affected Packages:

amazon-ssm-agent


Issue Correction:
Run yum update amazon-ssm-agent to update your system.

New Packages:
aarch64:
    amazon-ssm-agent-3.2.1705.0-1.amzn2.aarch64
    amazon-ssm-agent-debuginfo-3.2.1705.0-1.amzn2.aarch64

src:
    amazon-ssm-agent-3.2.1705.0-1.amzn2.src

x86_64:
    amazon-ssm-agent-3.2.1705.0-1.amzn2.x86_64
    amazon-ssm-agent-debuginfo-3.2.1705.0-1.amzn2.x86_64

Additional References

Red Hat: CVE-2021-43565, CVE-2022-41723, CVE-2023-24538

Mitre: CVE-2021-43565, CVE-2022-41723, CVE-2023-24538

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