{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2021-32635","title":"Title"},{"category":"description","text":"Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2021-32635","url":"https://www.suse.com/security/cve/CVE-2021-32635"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1186619 for CVE-2021-32635","url":"https://bugzilla.suse.com/1186619"}],"title":"SUSE CVE CVE-2021-32635","tracking":{"current_release_date":"2025-04-25T04:40:17Z","generator":{"date":"2023-02-15T03:40:59Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2021-32635","initial_release_date":"2023-02-15T03:40:59Z","revision_history":[{"date":"2023-02-15T03:40:59Z","number":"2","summary":"Current version"},{"date":"2025-01-01T04:26:31Z","number":"3","summary":"Current version"},{"date":"2025-02-15T05:01:13Z","number":"4","summary":"Current version"},{"date":"2025-02-17T05:23:45Z","number":"5","summary":"Current version"},{"date":"2025-03-15T08:53:57Z","number":"6","summary":"Current version"},{"date":"2025-04-25T04:40:17Z","number":"7","summary":"Current version"}],"status":"interim","version":"7"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Package Hub 15 SP2","product":{"name":"SUSE Package Hub 15 SP2","product_id":"SUSE Package Hub 15 SP2"}},{"category":"product_name","name":"SUSE 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Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"singularity-3.7.4-bp152.2.24.1 as component of SUSE Package Hub 15 SP2","product_id":"SUSE Package Hub 15 SP2:singularity-3.7.4-bp152.2.24.1"},"product_reference":"singularity-3.7.4-bp152.2.24.1","relates_to_product_reference":"SUSE Package Hub 15 SP2"},{"category":"default_component_of","full_product_name":{"name":"singularity-3.7.4-bp153.2.3.1 as component of SUSE Package Hub 15 SP3","product_id":"SUSE Package Hub 15 SP3:singularity-3.7.4-bp153.2.3.1"},"product_reference":"singularity-3.7.4-bp153.2.3.1","relates_to_product_reference":"SUSE Package Hub 15 SP3"},{"category":"default_component_of","full_product_name":{"name":"singularity-3.7.4-bp153.2.3.1 as component of openSUSE Leap 15.3","product_id":"openSUSE Leap 15.3:singularity-3.7.4-bp153.2.3.1"},"product_reference":"singularity-3.7.4-bp153.2.3.1","relates_to_product_reference":"openSUSE Leap 15.3"},{"category":"default_component_of","full_product_name":{"name":"singularity-3.8.3-1.2 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:singularity-3.8.3-1.2"},"product_reference":"singularity-3.8.3-1.2","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2021-32635","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2021-32635"}],"notes":[{"category":"general","text":"Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.","title":"CVE description"}],"product_status":{"recommended":["SUSE Package Hub 15 SP2:singularity-3.7.4-bp152.2.24.1","SUSE Package Hub 15 SP3:singularity-3.7.4-bp153.2.3.1","openSUSE Leap 15.3:singularity-3.7.4-bp153.2.3.1","openSUSE Tumbleweed:singularity-3.8.3-1.2"]},"references":[{"category":"external","summary":"CVE-2021-32635","url":"https://www.suse.com/security/cve/CVE-2021-32635"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1186619 for CVE-2021-32635","url":"https://bugzilla.suse.com/1186619"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Package Hub 15 SP2:singularity-3.7.4-bp152.2.24.1","SUSE Package Hub 15 SP3:singularity-3.7.4-bp153.2.3.1","openSUSE Leap 15.3:singularity-3.7.4-bp153.2.3.1","openSUSE Tumbleweed:singularity-3.8.3-1.2"]}],"scores":[{"cvss_v3":{"baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"products":["SUSE Package Hub 15 SP2:singularity-3.7.4-bp152.2.24.1","SUSE Package Hub 15 SP3:singularity-3.7.4-bp153.2.3.1","openSUSE Leap 15.3:singularity-3.7.4-bp153.2.3.1","openSUSE Tumbleweed:singularity-3.8.3-1.2"]}],"threats":[{"category":"impact","date":"2021-05-27T21:11:08Z","details":"moderate"}],"title":"CVE-2021-32635"}]}