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"https://bugzilla.redhat.com/show_bug.cgi?id=2453459", "name": "RHBZ#2453459", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-03-31T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-120", "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "workarounds": [{"lang": "en", "value": "Optionally, avoid using alg=ftp flows. These are not usually configured."}], "timeline": [{"lang": "en", "time": "2026-03-31T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-03-31T00:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Seiji Sakurai for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-05-05T15:45:04.638Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/03/31/15"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-05T16:36:17.493Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in a Denial of Service (DoS) for the affected system."}], "id": "CVE-2026-34956", "lastModified": "2026-05-05T19:31:10.400", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-05-05T16:16:11.927", "references": [{"source": "[email protected]", "url": "https://access.redhat.com/security/cve/CVE-2026-34956"}, {"source": "[email protected]", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453459"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/03/31/15"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "[email protected]", "type": "Secondary"}]}

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