{"id":"UBUNTU-CVE-2019-12760","details":"** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because \"the cache directory is not under control of the attacker in any common configuration.\"","modified":"2025-07-16T07:39:25.707759Z","published":"2019-06-06T19:29:00Z","withdrawn":"2025-07-18T16:45:10Z","upstream":["CVE-2019-12760"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12760"},{"type":"REPORT","url":"https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-12760"}],"affected":[{"package":{"name":"parso","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/parso@0.5.1-0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.1-0.1"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python-parso","binary_version":"0.5.1-0.1"},{"binary_name":"python-parso-doc","binary_version":"0.5.1-0.1"},{"binary_name":"python3-parso","binary_version":"0.5.1-0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12760.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}