{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","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":"Security update for python-pyasn1","title":"Title of the patch"},{"category":"description","text":"This update for python-pyasn1 fixes the following issues:\n\n- CVE-2026-23490: Fixed malformed RELATIVE-OID with excessive continuation octets leading to Denial of Service (bsc#1256902).\n","title":"Description of the patch"},{"category":"details","text":"SUSE-SLE-Micro-6.0-580","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":"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-2026_20447-1.json"},{"category":"self","summary":"URL for SUSE-SU-2026:20447-1","url":"https://www.suse.com/support/update/announcement/2026/suse-su-202620447-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2026:20447-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-February/024435.html"},{"category":"self","summary":"SUSE Bug 1256902","url":"https://bugzilla.suse.com/1256902"},{"category":"self","summary":"SUSE CVE CVE-2026-23490 page","url":"https://www.suse.com/security/cve/CVE-2026-23490/"}],"title":"Security update for python-pyasn1","tracking":{"current_release_date":"2026-02-16T14:23:52Z","generator":{"date":"2026-02-16T14:23:52Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2026:20447-1","initial_release_date":"2026-02-16T14:23:52Z","revision_history":[{"date":"2026-02-16T14:23:52Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"python311-pyasn1-0.5.0-3.1.noarch","product":{"name":"python311-pyasn1-0.5.0-3.1.noarch","product_id":"python311-pyasn1-0.5.0-3.1.noarch"}}],"category":"architecture","name":"noarch"},{"branches":[{"category":"product_name","name":"SUSE Linux Micro 6.0","product":{"name":"SUSE Linux Micro 6.0","product_id":"SUSE Linux Micro 6.0","product_identification_helper":{"cpe":"cpe:/o:suse:sl-micro:6.0"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"python311-pyasn1-0.5.0-3.1.noarch as component of SUSE Linux Micro 6.0","product_id":"SUSE Linux Micro 6.0:python311-pyasn1-0.5.0-3.1.noarch"},"product_reference":"python311-pyasn1-0.5.0-3.1.noarch","relates_to_product_reference":"SUSE Linux Micro 6.0"}]},"vulnerabilities":[{"cve":"CVE-2026-23490","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2026-23490"}],"notes":[{"category":"general","text":"pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Micro 6.0:python311-pyasn1-0.5.0-3.1.noarch"]},"references":[{"category":"external","summary":"CVE-2026-23490","url":"https://www.suse.com/security/cve/CVE-2026-23490"},{"category":"external","summary":"SUSE Bug 1256902 for CVE-2026-23490","url":"https://bugzilla.suse.com/1256902"}],"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 Micro 6.0:python311-pyasn1-0.5.0-3.1.noarch"]}],"scores":[{"cvss_v3":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"products":["SUSE Linux Micro 6.0:python311-pyasn1-0.5.0-3.1.noarch"]}],"threats":[{"category":"impact","date":"2026-02-16T14:23:52Z","details":"important"}],"title":"CVE-2026-23490"}]}