QID 356272

Date Published: 2023-09-28

QID 356272: Amazon Linux Security Advisory for ruby : ALASRUBY2.6-2023-004

An issue was discovered in ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1.
A malicious ftp server can use the pasv response to trick net::ftp into connecting back to a given ip address and port.
This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions). (
( CVE-2021-31810) an issue was discovered in ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1.
Net::imap does not raise an exception when starttls fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the tls protections by leveraging a network position between the client and the registry to block the starttls command, aka a "starttls stripping attack." (
( CVE-2021-32066)

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as High - 7.4 severity.

CVSS V2 rated as Medium - 5.8 severity.

Solution

Please refer to Amazon advisory: ALASRUBY2.6-2023-004 for affected packages and patching details, or update with your package manager.

Vendor References

ALASRUBY2.6-2023-004 - alas.aws.amazon.com/AL2/ALASRUBY2.6-2023-004.html

CVEs related to QID 356272

CVE-2021-32066 | CVE-2021-31810 |

Software Advisories

Advisory ID	Software	Component	Link
ALASRUBY2.6-2023-004	amazon linux 2		alas.aws.amazon.com/AL2/ALASRUBY2.6-2023-004.html

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