SUSE-SU-2026:21224-1
Vulnerability from csaf_suse - Published: 2026-04-10 11:19 - Updated: 2026-04-10 11:19Summary
Security update for corosync
Severity
Important
Notes
Title of the patch: Security update for corosync
Description of the patch: This update for corosync fixes the following issues:
- CVE-2026-35091: Denial of Service and information disclosure via crafted UDP packet (bsc#1261299).
- CVE-2026-35092: Denial of Service via integer overflow in join message validation (bsc#1261300).
Patchnames: SUSE-SLES-16.0-521
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
8.2 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
7.5 (High)
Vendor Fix
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
{
"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 corosync",
"title": "Title of the patch"
},
{
"category": "description",
"text": "This update for corosync fixes the following issues:\n\n- CVE-2026-35091: Denial of Service and information disclosure via crafted UDP packet (bsc#1261299).\n- CVE-2026-35092: Denial of Service via integer overflow in join message validation (bsc#1261300).\n",
"title": "Description of the patch"
},
{
"category": "details",
"text": "SUSE-SLES-16.0-521",
"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_21224-1.json"
},
{
"category": "self",
"summary": "URL for SUSE-SU-2026:21224-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621224-1/"
},
{
"category": "self",
"summary": "E-Mail link for SUSE-SU-2026:21224-1",
"url": "https://lists.suse.com/pipermail/sle-updates/2026-April/045732.html"
},
{
"category": "self",
"summary": "SUSE Bug 1261299",
"url": "https://bugzilla.suse.com/1261299"
},
{
"category": "self",
"summary": "SUSE Bug 1261300",
"url": "https://bugzilla.suse.com/1261300"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2026-35091 page",
"url": "https://www.suse.com/security/cve/CVE-2026-35091/"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2026-35092 page",
"url": "https://www.suse.com/security/cve/CVE-2026-35092/"
}
],
"title": "Security update for corosync",
"tracking": {
"current_release_date": "2026-04-10T11:19:52Z",
"generator": {
"date": "2026-04-10T11:19:52Z",
"engine": {
"name": "cve-database.git:bin/generate-csaf.pl",
"version": "1"
}
},
"id": "SUSE-SU-2026:21224-1",
"initial_release_date": "2026-04-10T11:19:52Z",
"revision_history": [
{
"date": "2026-04-10T11:19:52Z",
"number": "1",
"summary": "Current version"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version",
"name": "corosync-3.1.9-160000.3.1.ppc64le",
"product": {
"name": "corosync-3.1.9-160000.3.1.ppc64le",
"product_id": "corosync-3.1.9-160000.3.1.ppc64le"
}
},
{
"category": "product_version",
"name": "corosync-devel-3.1.9-160000.3.1.ppc64le",
"product": {
"name": "corosync-devel-3.1.9-160000.3.1.ppc64le",
"product_id": "corosync-devel-3.1.9-160000.3.1.ppc64le"
}
},
{
"category": "product_version",
"name": "corosync-libs-3.1.9-160000.3.1.ppc64le",
"product": {
"name": "corosync-libs-3.1.9-160000.3.1.ppc64le",
"product_id": "corosync-libs-3.1.9-160000.3.1.ppc64le"
}
}
],
"category": "architecture",
"name": "ppc64le"
},
{
"branches": [
{
"category": "product_version",
"name": "corosync-3.1.9-160000.3.1.x86_64",
"product": {
"name": "corosync-3.1.9-160000.3.1.x86_64",
"product_id": "corosync-3.1.9-160000.3.1.x86_64"
}
},
{
"category": "product_version",
"name": "corosync-devel-3.1.9-160000.3.1.x86_64",
"product": {
"name": "corosync-devel-3.1.9-160000.3.1.x86_64",
"product_id": "corosync-devel-3.1.9-160000.3.1.x86_64"
}
},
{
"category": "product_version",
"name": "corosync-libs-3.1.9-160000.3.1.x86_64",
"product": {
"name": "corosync-libs-3.1.9-160000.3.1.x86_64",
"product_id": "corosync-libs-3.1.9-160000.3.1.x86_64"
}
}
],
"category": "architecture",
"name": "x86_64"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux Enterprise Server for SAP applications 16.0",
"product": {
"name": "SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0",
"product_identification_helper": {
"cpe": "cpe:/o:suse:sles:16:16.0:server-sap"
}
}
}
],
"category": "product_family",
"name": "SUSE Linux Enterprise"
}
],
"category": "vendor",
"name": "SUSE"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-3.1.9-160000.3.1.ppc64le as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le"
},
"product_reference": "corosync-3.1.9-160000.3.1.ppc64le",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-3.1.9-160000.3.1.x86_64 as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64"
},
"product_reference": "corosync-3.1.9-160000.3.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-devel-3.1.9-160000.3.1.ppc64le as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le"
},
"product_reference": "corosync-devel-3.1.9-160000.3.1.ppc64le",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-devel-3.1.9-160000.3.1.x86_64 as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64"
},
"product_reference": "corosync-devel-3.1.9-160000.3.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-libs-3.1.9-160000.3.1.ppc64le as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le"
},
"product_reference": "corosync-libs-3.1.9-160000.3.1.ppc64le",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "corosync-libs-3.1.9-160000.3.1.x86_64 as component of SUSE Linux Enterprise Server for SAP applications 16.0",
"product_id": "SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
},
"product_reference": "corosync-libs-3.1.9-160000.3.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP applications 16.0"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-35091",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-35091"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents. This vulnerability affects Corosync when running in totemudp/totemudpu mode, which is the default configuration.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-35091",
"url": "https://www.suse.com/security/cve/CVE-2026-35091"
},
{
"category": "external",
"summary": "SUSE Bug 1261299 for CVE-2026-35091",
"url": "https://bugzilla.suse.com/1261299"
}
],
"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 for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-04-10T11:19:52Z",
"details": "important"
}
],
"title": "CVE-2026-35091"
},
{
"cve": "CVE-2026-35092",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-35092"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in Corosync. An integer overflow vulnerability in Corosync\u0027s join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-35092",
"url": "https://www.suse.com/security/cve/CVE-2026-35092"
},
{
"category": "external",
"summary": "SUSE Bug 1261300 for CVE-2026-35092",
"url": "https://bugzilla.suse.com/1261300"
}
],
"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 for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
}
],
"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 Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-devel-3.1.9-160000.3.1.x86_64",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.ppc64le",
"SUSE Linux Enterprise Server for SAP applications 16.0:corosync-libs-3.1.9-160000.3.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-04-10T11:19:52Z",
"details": "important"
}
],
"title": "CVE-2026-35092"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…