CVE-2020-10174

init_tmp in TeeJee.FileSystem.vala in Timeshift before 20.03 unsafely reuses a preexisting temporary directory in the predictable location /tmp/timeshift. It follows symlinks in this location or uses directories owned by unprivileged users. Because Timeshift also executes scripts under this location, an attacker can attempt to win a race condition to replace scripts created by Timeshift with attacker-controlled scripts. Upon success, an attacker-controlled script is executed with full root privileges. This logic is practically always triggered when Timeshift runs regardless of the command-line arguments used.

Link	Resource
https://github.com/teejee2008/timeshift/releases/tag/v20.03	Release Notes Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1165802	Issue Tracking Third Party Advisory
https://github.com/teejee2008/timeshift/commit/335b3d5398079278b8f7094c77bfd148b315b462	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/03/06/3	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXXYQFSZ5P6ZMNFIDBAQKBFZIR2T7ZLL/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SXDEPC52G46U6I7GLQNFLZXVSM7V2HYY/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAOFXT64CEUMJE3723JDJWTEQWQUCYMD/	Mailing List Third Party Advisory
https://usn.ubuntu.com/4312-1/	Third Party Advisory

Configuration 1

cpe:2.3:a:timeshift_project:timeshift:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*

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Published : 2020-03-05 04:15

Updated : 2022-01-01 07:36

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NVD link : CVE-2020-10174

Mitre link : CVE-2020-10174

No products.

CWE-362

CWE-59