{"url":"http://public2.vulnerablecode.io/api/packages/465898?format=json","purl":"pkg:apk/alpine/xen@0?arch=x86_64&distroversion=v3.13&reponame=main","type":"apk","namespace":"alpine","name":"xen","version":"0","qualifiers":{"arch":"x86_64","distroversion":"v3.13","reponame":"main"},"subpath":"","is_vulnerable":false,"next_non_vulnerable_version":"4.7.0-r0","latest_non_vulnerable_version":"4.14.5-r7","affected_by_vulnerabilities":[],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/80466?format=json","vulnerability_id":"VCID-jgd1-4c8x-xbg3","summary":"An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-29568","reference_id":"","reference_type":"","scores":[{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45529","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45497","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45526","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45456","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45509","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00226","scoring_system":"epss","scoring_elements":"0.45484","published_at":"2026-06-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-29568"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27825","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27825"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27830","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27830"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36158","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36158"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20177","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20177"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3347","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3347"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"6.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://security.gentoo.org/glsa/202107-30","reference_id":"GLSA-202107-30","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-30"},{"reference_url":"https://usn.ubuntu.com/4748-1/","reference_id":"USN-4748-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4748-1/"},{"reference_url":"https://usn.ubuntu.com/4749-1/","reference_id":"USN-4749-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4749-1/"},{"reference_url":"https://usn.ubuntu.com/4750-1/","reference_id":"USN-4750-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4750-1/"},{"reference_url":"https://usn.ubuntu.com/4751-1/","reference_id":"USN-4751-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4751-1/"},{"reference_url":"https://xenbits.xen.org/xsa/advisory-349.html","reference_id":"XSA-349","reference_type":"","scores":[],"url":"https://xenbits.xen.org/xsa/advisory-349.html"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/465898?format=json","purl":"pkg:apk/alpine/xen@0?arch=x86_64&distroversion=v3.13&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=x86_64&distroversion=v3.13&reponame=main"}],"aliases":["CVE-2020-29568","XSA-349"],"risk_score":1.6,"exploitability":"0.5","weighted_severity":"3.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-jgd1-4c8x-xbg3"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/80467?format=json","vulnerability_id":"VCID-jqzv-2cpj-hqfc","summary":"An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2020-29569","reference_id":"","reference_type":"","scores":[{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.43256","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.4321","published_at":"2026-06-09T12:55:00Z"},{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.43248","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.43175","published_at":"2026-06-04T12:55:00Z"},{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.43235","published_at":"2026-06-07T12:55:00Z"},{"value":"0.00208","scoring_system":"epss","scoring_elements":"0.432","published_at":"2026-06-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2020-29569"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27815"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27825","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27825"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27830","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27830"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29569"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29660"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29661"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36158","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36158"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20177","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20177"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3347","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3347"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://security.gentoo.org/glsa/202107-30","reference_id":"GLSA-202107-30","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202107-30"},{"reference_url":"https://usn.ubuntu.com/4749-1/","reference_id":"USN-4749-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4749-1/"},{"reference_url":"https://usn.ubuntu.com/4750-1/","reference_id":"USN-4750-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4750-1/"},{"reference_url":"https://usn.ubuntu.com/4751-1/","reference_id":"USN-4751-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4751-1/"},{"reference_url":"https://usn.ubuntu.com/4876-1/","reference_id":"USN-4876-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/4876-1/"},{"reference_url":"https://xenbits.xen.org/xsa/advisory-350.html","reference_id":"XSA-350","reference_type":"","scores":[],"url":"https://xenbits.xen.org/xsa/advisory-350.html"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/465898?format=json","purl":"pkg:apk/alpine/xen@0?arch=x86_64&distroversion=v3.13&reponame=main","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apk/alpine/xen@0%3Farch=x86_64&distroversion=v3.13&reponame=main"}],"aliases":["CVE-2020-29569","XSA-350"],"risk_score":2.2,"exploitability":"0.5","weighted_severity":"4.4","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-jqzv-2cpj-hqfc"}],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg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