{"id":"UBUNTU-CVE-2021-29488","details":"SABnzbd is an open source binary newsreader. A vulnerability was discovered in SABnzbd that could trick the `filesystem.renamer()` function into writing downloaded files outside the configured Download Folder via malicious PAR2 files. A patch was released as part of SABnzbd 3.2.1RC1. As a workaround, limit downloads to NZBs without PAR2 files, deny write permissions to the SABnzbd process outside areas it must access to perform its job, or update to a fixed version.","modified":"2025-10-24T04:50:16Z","published":"2021-05-07T15:15:00Z","upstream":["CVE-2021-29488"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-29488"},{"type":"REPORT","url":"https://github.com/sabnzbd/sabnzbd/security/advisories/GHSA-jwj3-wrvf-v3rp"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-29488"}],"affected":[{"package":{"name":"sabnzbdplus","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/sabnzbdplus@0.7.20+dfsg-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.20-1","0.7.20+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"sabnzbdplus","binary_version":"0.7.20+dfsg-1"},{"binary_name":"sabnzbdplus-theme-classic","binary_version":"0.7.20+dfsg-1"},{"binary_name":"sabnzbdplus-theme-iphone","binary_version":"0.7.20+dfsg-1"},{"binary_name":"sabnzbdplus-theme-mobile","binary_version":"0.7.20+dfsg-1"},{"binary_name":"sabnzbdplus-theme-plush","binary_version":"0.7.20+dfsg-1"},{"binary_name":"sabnzbdplus-theme-smpl","binary_version":"0.7.20+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29488.json"}},{"package":{"name":"sabnzbdplus","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/sabnzbdplus@2.3.2+dfsg-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.1+dfsg-1","2.3.1+dfsg-1","2.3.2+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"sabnzbdplus","binary_version":"2.3.2+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29488.json"}},{"package":{"name":"sabnzbdplus","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/sabnzbdplus@3.0.0~0git20200408+dfsg-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.6+dfsg-1","2.3.6+dfsg-1build1","2.3.6+dfsg-1ubuntu1","3.0.0~0git20200408+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"sabnzbdplus","binary_version":"3.0.0~0git20200408+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29488.json"}},{"package":{"name":"sabnzbdplus","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/sabnzbdplus@3.5.1+dfsg-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1+dfsg-1","3.4.2+dfsg-1","3.4.2+dfsg-2","3.5.0+dfsg-1","3.5.0+dfsg-2","3.5.1+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"sabnzbdplus","binary_version":"3.5.1+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-29488.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}