Detections
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Amazon Linux AMI : golang (ALAS-2021-1527)
medium Nessus Plugin ID 153167
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
The version of golang installed on the remote host is prior to 1.15.14-1.69. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2021-1527 advisory.A flaw was found in Go, acting as an unintended proxy or intermediary, where ReverseProxy forwards connection headers if the first one was empty. This flaw allows an attacker to drop arbitrary headers. The highest threat from this vulnerability is to integrity. (CVE-2021-33197)
A flaw was found in Go, where it attempts to allocate excessive memory. This issue may cause panic or unrecoverable fatal error if passed inputs with very large exponents. The highest threat from this vulnerability is to system availability. (CVE-2021-33198)
A flaw was found in golang. A panic can be triggered by an attacker in a privileged network position without access to the server certificate's private key, as long as a trusted ECDSA or Ed25519 certificate for the server exists (or can be issued), or the client is configured with Config.InsecureSkipVerify.
Clients that disable all TLS_RSA cipher suites (that is, TLS 1.0-1.2 cipher suites without ECDHE), as well as TLS 1.3-only clients, are unaffected. (CVE-2021-34558)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update golang' to update your system.See Also
https://alas.aws.amazon.com/ALAS-2021-1527.html
https://access.redhat.com/security/cve/CVE-2021-33197
Plugin Details
Severity: Medium
ID: 153167
File Name: ala_ALAS-2021-1527.nasl
Version: 1.5
Type: local
Agent: unix
Published: 9/9/2021
Updated: 12/11/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2021-33197
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:golang-bin, p-cpe:/a:amazon:linux:golang-src, p-cpe:/a:amazon:linux:golang-race, p-cpe:/a:amazon:linux:golang-tests, p-cpe:/a:amazon:linux:golang, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:golang-docs, p-cpe:/a:amazon:linux:golang-misc
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/2/2021
Vulnerability Publication Date: 7/15/2021
Reference Information
CVE: CVE-2021-33197, CVE-2021-33198, CVE-2021-34558
ALAS: 2021-1527
IAVB: 2021-B-0047-S