CVE-2019-13226

 

Published at: - 04-07-2019 02:15

Last modified: - 18-04-2022 06:56

Total changes: - 3

Description

deepin-clone before 1.1.3 uses a predictable path /tmp/.deepin-clone/mount/<block-dev-basename> in the Helper::temporaryMountDevice() function to temporarily mount a file system as root. An unprivileged user can prepare a symlink at this location to have the file system mounted in an arbitrary location. By winning a race condition, the attacker can also enter the mount point, thereby preventing a subsequent unmount of the file system.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://github.com/linuxdeepin/deepin-clone/commit/e079f3e2712b4f8c28e3e63e71ba1a1f90fce1ab
• https://bugzilla.suse.com/show_bug.cgi?id=1130388
• [oss-security] 20190704 deepin-clone: various symlink attacks-Mailing List, Third Party Advisory
• FEDORA-2019-3d418f349c-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2019-13226

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures