{"id":"USN-2815-1","summary":"libpng vulnerabilities","details":"Mikulas 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)\n","modified":"2026-02-10T04:40:56Z","published":"2015-11-19T19:01:30Z","related":["UBUNTU-CVE-2015-7981","UBUNTU-CVE-2015-8126"],"upstream":["CVE-2015-7981","CVE-2015-8126","UBUNTU-CVE-2012-3425","UBUNTU-CVE-2015-7981","UBUNTU-CVE-2015-8126"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2815-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2012-3425"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-7981"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8126"}],"affected":[{"package":{"name":"libpng","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libpng@1.2.50-1ubuntu2.14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.50-1ubuntu2.14.04.1"}]}],"versions":["1.2.49-4ubuntu1","1.2.49-5ubuntu1","1.2.50-1ubuntu1","1.2.50-1ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.2.50-1ubuntu2.14.04.1","binary_name":"libpng12-0"},{"binary_version":"1.2.50-1ubuntu2.14.04.1","binary_name":"libpng12-dev"},{"binary_version":"1.2.50-1ubuntu2.14.04.1","binary_name":"libpng3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2815-1.json","cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"severity":[{"score":"low","type":"Ubuntu"}],"id":"CVE-2015-7981"},{"severity":[{"score":"medium","type":"Ubuntu"}],"id":"CVE-2015-8126"}]}}}],"schema_version":"1.7.3"}