{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-120458","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-02T12:42:23.013Z","datePublished":"2026-11-02T14:29:15.073Z","dateUpdated":"2026-11-02T14:29:15.073Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-02T14:29:15.073Z"},"datePublic":"2026-08-25T00:00:00.000Z","title":"Kvazaar through 2.3.2 Infinite Loop DoS via Y4M Header Parser","descriptions":[{"lang":"en","value":"Kvazaar through 2.3.2 contains an infinite loop vulnerability in read_header() in src/encmain.c that allows attackers to hang the command-line encoder by supplying a truncated Y4M header. Attackers can provide a crafted .y4m file lacking a terminating newline, causing unchecked EOF reads that hang the process indefinitely while consuming a full CPU core."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Loop with Unreachable Exit Condition ('Infinite Loop')","cweId":"CWE-835","type":"CWE"}]}],"affected":[{"vendor":"Ultra Video Group","product":"Kvazaar","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"2.3.2","status":"affected","versionType":"semver"}],"repo":"https://github.com/ultravideo/kvazaar"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/ultravideo/kvazaar/issues/452","tags":["issue-tracking"]},{"url":"https://github.com/ultravideo/kvazaar/commit/8a2f109be283e87008c679d635966cc034da39c6","tags":["patch"]},{"url":"https://github.com/ultravideo/kvazaar/blob/v2.3.2/src/encmain.c#L339-L357","tags":["technical-description"]},{"url":"https://github.com/ultravideo/kvazaar/releases/tag/v2.3.2","tags":["release-notes"],"name":"Kvazaar v2.3.2 Release Notes"},{"url":"https://hackmd.io/@haindpwn/kvazaar-y4m-header-missing-newline-infinite-loop","tags":["technical-description"]},{"name":"VulnCheck Advisory: Kvazaar through 2.3.2 Infinite Loop DoS via Y4M Header Parser","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/kvazaar-through-2.3.2-infinite-loop-dos-via-y4m-header-parser"}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"},{"lang":"en","value":"Marko Viitanen (fador)","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}}}}