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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-10174 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2020/03/06/3 CVE, MITRE Mailing List  Third Party Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1165802 CVE, MITRE Issue Tracking  Third Party Advisory 
https://github.com/teejee2008/timeshift/commit/335b3d5398079278b8f7094c77bfd148b315b462 CVE, MITRE Patch  Third Party Advisory 
https://github.com/teejee2008/timeshift/releases/tag/v20.03 CVE, MITRE Release Notes  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAOFXT64CEUMJE3723JDJWTEQWQUCYMD/ CVE, MITRE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SXDEPC52G46U6I7GLQNFLZXVSM7V2HYY/ CVE, MITRE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXXYQFSZ5P6ZMNFIDBAQKBFZIR2T7ZLL/ CVE, MITRE
https://usn.ubuntu.com/4312-1/ CVE, MITRE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-59 Improper Link Resolution Before File Access ('Link Following') cwe source acceptance level NIST  
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-10174
NVD Published Date:
03/05/2020
NVD Last Modified:
06/16/2026
Source:
MITRE