{"schemaVersion":3,"id":"CVE-2018-6548","aliases":["UBUNTU-CVE-2018-6548"],"status":"published","duplicateOf":null,"title":null,"description":"A use-after-free issue was discovered in libwebm through 2018-02-02. If a Vp9HeaderParser was initialized once before, its property frame_ would not be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its frame_ could be freed while the corresponding pointer would not be updated, leading to a dangling pointer. This is related to the function OutputCluster in webm_info.cc.","dates":{"published":"2018-02-02T09:00:00.000Z","modified":"2024-08-05T06:10:10.324Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · 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Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","type":"weakness","status":"Stable","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/416.html"}],"affected":[{"vendor":"ubuntu","product":"oxide-qt","name":"oxide-qt","label":"oxide-qt","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/oxide-qt","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"webmproject","product":"libwebm","name":"libwebm","label":"libwebm","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.0.0.27","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.0.0.27","eol":null,"hubHref":"/vendor/webmproject/libwebm"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/dwfault/PoCs/blob/master/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info/libwebm%20Vp9HeaderParser%20UAF%20by%20PrintVP9Info.md","label":"github.com/dwfault/…","hostname":"github.com","tags":["X Refsource MISC","Exploit","Third Party Advisory","REPORT"]},{"url":"https://bugs.chromium.org/p/webm/issues/detail?id=1493","label":"bugs.chromium.org/p/webm/issues/detail?id=1493","hostname":"bugs.chromium.org","tags":["X Refsource MISC","Permissions Required"]},{"url":"https://ubuntu.com/security/CVE-2018-6548","label":"ubuntu.com/security/CVE-2018-6548","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-6548","label":"www.cve.org/CVERecord?id=CVE-2018-6548","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-02-02T09:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T06:10:10.324Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T21:14:18.982Z","stale":false,"partial":false}}