CVE-2020-29373

An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.

CVSS v3 6.5 MEDIUM
CVSS v2.0 2.1 LOW

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://bugs.chromium.org/p/project-zero/issues/detail?id=2011	Exploit Issue Tracking Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff002b30181d30cdfbca316dadd099c3ca0d739c	Patch Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2011	Exploit Issue Tracking Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff002b30181d30cdfbca316dadd099c3ca0d739c	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-11-28 07:15

Updated : 2024-11-21 05:23

NVD link : CVE-2020-29373

Mitre link : CVE-2020-29373

CVE.ORG link : CVE-2020-29373

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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