CVE-2021-31810 Affecting ruby2.5-stdlib package, versions <2.5.9-150000.4.23.1
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Test your applications- Snyk ID SNYK-SLES151-RUBY25STDLIB-2807967
- published 4 May 2022
- disclosed 3 May 2022
Introduced: 3 May 2022
CVE-2021-31810 Open this link in a new tabHow to fix?
Upgrade SLES:15.1 ruby2.5-stdlib to version 2.5.9-150000.4.23.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby2.5-stdlib package and not the ruby2.5-stdlib package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
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).
References
- https://www.suse.com/security/cve/CVE-2021-31810.html
- https://bugzilla.suse.com/1188161
- https://bugzilla.suse.com/1193383
- https://bugzilla.suse.com/1205053
- https://www.ruby-lang.org/en/news/2021/07/07/trusting-pasv-responses-in-net-ftp/
- https://hackerone.com/reports/1145454
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/
- https://security.netapp.com/advisory/ntap-20210917-0001/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/
- https://security.gentoo.org/glsa/202401-27