CVE-2019-13226

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.

CVSS v3.0 7.0 HIGH
CVSS v2.0 6.9 MEDIUM

7.0^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/linuxdeepin/deepin-clone/commit/e079f3e2712b4f8c28e3e63e71ba1a1f90fce1ab	Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1130388	Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/04/1	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCHGRJV5CWTMYEE5B5C2FNMCFVP45S7H/	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:deepin:deepin-clone:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

Information

Published : 2019-07-04 05:15

Updated : 2022-04-18 09:56

NVD link : CVE-2019-13226

Mitre link : CVE-2019-13226

JSON object : View

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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Products Affected

deepin

deepin-clone

fedoraproject

fedora

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