{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2023 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for xen","title":"Title of the patch"},{"category":"description","text":"This update for xen fixes the following issues:\n\n- CVE-2021-3419: Fixed a stack overflow induced by infinite recursion issue (bsc#1182975).\n- CVE-2021-20257: Fixed an infinite loop in the e1000 NIC emulator (bsc#1182846)\n- xenstored crashing with segfault (bsc#1182155).\n","title":"Description of the patch"},{"category":"details","text":"slessp4-xen-14702","title":"Patchnames"},{"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":"self","summary":"URL for SUSE-SU-2021:14702-1","url":"https://www.suse.com/support/update/announcement/2021/suse-su-202114702-1/"},{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_14702-1.json"},{"category":"self","summary":"E-Mail link for SUSE-SU-2021:14702-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2021-April/008656.html"},{"category":"self","summary":"SUSE Bug 1182155","url":"https://bugzilla.suse.com/1182155"},{"category":"self","summary":"SUSE Bug 1182846","url":"https://bugzilla.suse.com/1182846"},{"category":"self","summary":"SUSE Bug 1182975","url":"https://bugzilla.suse.com/1182975"},{"category":"self","summary":"SUSE CVE CVE-2021-20257 page","url":"https://www.suse.com/security/cve/CVE-2021-20257/"},{"category":"self","summary":"SUSE CVE CVE-2021-3419 page","url":"https://www.suse.com/security/cve/CVE-2021-3419/"}],"title":"Security update for xen","tracking":{"current_release_date":"2021-04-19T14:36:41Z","generator":{"date":"2021-04-19T14:36:41Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2021:14702-1","initial_release_date":"2021-04-19T14:36:41Z","revision_history":[{"date":"2021-04-19T14:36:41Z","number":"1","summary":"Current 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SP4-LTSS"}]},"vulnerabilities":[{"cve":"CVE-2021-20257","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2021-20257"}],"notes":[{"category":"general","text":"An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.","title":"Vulnerability description"}],"product_status":{"fixed":["SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2021-20257","url":"https://www.suse.com/security/cve/CVE-2021-20257"},{"category":"external","summary":"SUSE Bug 1182577 for CVE-2021-20257","url":"https://bugzilla.suse.com/1182577"},{"category":"external","summary":"SUSE Bug 1182846 for CVE-2021-20257","url":"https://bugzilla.suse.com/1182846"}],"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 Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":3.2,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L","version":"3.1"},"products":["SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-04-19T14:36:41Z","details":"low"}],"title":"CVE-2021-20257"},{"cve":"CVE-2021-3419","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2021-3419"}],"notes":[{"category":"general","text":"** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Notes: none.","title":"Vulnerability description"}],"product_status":{"fixed":["SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2021-3419","url":"https://www.suse.com/security/cve/CVE-2021-3419"},{"category":"external","summary":"SUSE Bug 1182968 for CVE-2021-3419","url":"https://bugzilla.suse.com/1182968"},{"category":"external","summary":"SUSE Bug 1182975 for CVE-2021-3419","url":"https://bugzilla.suse.com/1182975"}],"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 Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":5.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_48-61.64.1.x86_64","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.i586","SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_48-61.64.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-04-19T14:36:41Z","details":"moderate"}],"title":"CVE-2021-3419"}]}