{"schemaVersion":3,"id":"USN-2815-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libpng vulnerabilities\n\nMikulas Patocka discovered that libpng incorrectly handled certain large\nfields. If a user or automated system using libpng were tricked into\nopening a specially crafted image, an attacker could exploit this to cause\nlibpng to crash, leading to a denial of service. This issue only affected\nUbuntu 12.04 LTS. (CVE-2012-3425)\n\nQixue Xiao discovered that libpng incorrectly handled certain time values.\nIf a user or automated system using libpng were tricked into opening a\nspecially crafted image, an attacker could exploit this to cause libpng to\ncrash, leading to a denial of service. (CVE-2015-7981)\n\nIt was discovered that libpng incorrectly handled certain small bit-depth\nvalues. If a user or automated system using libpng were tricked into\nopening a specially crafted image, an attacker could exploit this to cause\na denial of service or execute code with the privileges of the user\ninvoking the program. (CVE-2015-8126)","dates":{"published":"2015-11-19T19:01:30.000Z","modified":"2026-04-22T09:19:01.551Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"libpng","name":"libpng","label":"libpng","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libpng","purlType":"deb","versions":[{"text":"< 1.2.50-1ubuntu2.14.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.50-1ubuntu2.14.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2815-1","label":"ubuntu.com/security/notices/USN-2815-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2012-3425","label":"ubuntu.com/security/CVE-2012-3425","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2015-7981","label":"ubuntu.com/security/CVE-2015-7981","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2015-8126","label":"ubuntu.com/security/CVE-2015-8126","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2015-7981","CVE-2015-8126"],"downstream":[],"duplicates":[],"related":["CVE-2015-7981","CVE-2015-8126"]},"timeline":[{"kind":"published","date":"2015-11-19T19:01:30.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:19:01.551Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:57:49.028Z","stale":false,"partial":false}}