Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2022-27664: In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error. CVE-2022-27191: A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentification with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | amazon-ssm-agent | 0:3.2.1377.0-1.amzn2 |
| Amazon Linux · 2 | amazon-ssm-agent-debuginfo | 0:3.2.1377.0-1.amzn2 |
Vulnerabilities 2
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High 7.5
golang.org/x/crypto/ssh Denial of service via crafted Signer
The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.
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High 7.5
golang.org/x/net/http2 Denial of Service vulnerability
In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.