{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/debian11els/vex/2026/cve-2026-30922-els_os-debian11els.json" } ], "tracking": { "current_release_date": "2026-09-17T22:02:53Z", "generator": { "date": "2026-09-17T22:02:53Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-30922-ELS_OS-DEBIAN11ELS", "initial_release_date": "2026-03-18T04:17:00Z", "revision_history": [ { "date": "2026-03-18T04:17:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-17T22:02:53Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2026-30922" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian 11", "product": { "name": "Debian 11", "product_id": "Debian-11", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:11:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Debian" } ], "category": "vendor", "name": "Software in the Public Interest, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product": { "name": "pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_id": "pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/pypy-pyasn1@0.4.8-1%2Bdeb11u2%2Btuxcare.els1?arch=all" } } }, { "category": "product_version", "name": "python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product": { "name": "python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_id": "python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/python3-pyasn1@0.4.8-1%2Bdeb11u2%2Btuxcare.els1?arch=all" } } }, { "category": "product_version", "name": "python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product": { "name": "python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_id": "python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/python-pyasn1-doc@0.4.8-1%2Bdeb11u2%2Btuxcare.els1?arch=all" } } } ], "category": "architecture", "name": "all" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all as a component of Debian 11", "product_id": "Debian-11:pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all" }, "product_reference": "pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "relates_to_product_reference": "Debian-11" }, { "category": "default_component_of", "full_product_name": { "name": "python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all as a component of Debian 11", "product_id": "Debian-11:python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all" }, "product_reference": "python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "relates_to_product_reference": "Debian-11" }, { "category": "default_component_of", "full_product_name": { "name": "python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all as a component of Debian 11", "product_id": "Debian-11:python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all" }, "product_reference": "python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "relates_to_product_reference": "Debian-11" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-30922", "cwe": { "id": "CWE-674", "name": "Uncontrolled Recursion" }, "notes": [ { "category": "description", "text": "pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.3, the `pyasn1` library is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with deeply nested structures. An attacker can supply a crafted payload containing thousands of nested `SEQUENCE` (`0x30`) or `SET` (`0x31`) tags with \"Indefinite Length\" (`0x80`) markers. This forces the decoder to recursively call itself until the Python interpreter crashes with a `RecursionError` or consumes all available memory (OOM), crashing the host application. This is a distinct vulnerability from CVE-2026-23490 (which addressed integer overflows in OID decoding). The fix for CVE-2026-23490 (`MAX_OID_ARC_CONTINUATION_OCTETS`) does not mitigate this recursion issue. Version 0.6.3 fixes this specific issue.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "under_investigation": [ "Debian-11:pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-30922" }, { "category": "external", "summary": "https://github.com/pyasn1/pyasn1/commit/25ad481c19fdb006e20485ef3fc2e5b3eff30ef0", "url": "https://github.com/pyasn1/pyasn1/commit/25ad481c19fdb006e20485ef3fc2e5b3eff30ef0" }, { "category": "external", "summary": "https://github.com/pyasn1/pyasn1/security/advisories/GHSA-jr27-m4p2-rc6r", "url": "https://github.com/pyasn1/pyasn1/security/advisories/GHSA-jr27-m4p2-rc6r" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/03/20/4", "url": "http://www.openwall.com/lists/oss-security/2026/03/20/4" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2026/05/msg00001.html", "url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00001.html" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:10184", "url": "https://access.redhat.com/errata/RHSA-2026:10184" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:12176", "url": "https://access.redhat.com/errata/RHSA-2026:12176" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:13508", "url": "https://access.redhat.com/errata/RHSA-2026:13508" }, { "category": "external", "summary": 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}, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2026:8437", "url": "https://access.redhat.com/errata/RHSA-2026:8437" }, { "category": "external", "summary": "https://access.redhat.com/security/cve/CVE-2026-30922", "url": "https://access.redhat.com/security/cve/CVE-2026-30922" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=2448553", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448553" }, { "category": "external", "summary": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-30922.json", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-30922.json" } ], "release_date": "2026-03-18T04:17:00Z", "remediations": [ { "category": "none_available", "date": "2026-09-11T12:10:43.722979Z", "details": "Affected", "product_ids": [ "Debian-11:pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" }, "products": [ "Debian-11:pypy-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python-pyasn1-doc-0:0.4.8-1+deb11u2+tuxcare.els1.all", "Debian-11:python3-pyasn1-0:0.4.8-1+deb11u2+tuxcare.els1.all" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }