CVE-2023-3389

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).

CVSS v3.0 7.8 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663	Mailing List Patch
https://kernel.dance/4716c73b188566865bdd79c3a6709696a224ac04	Patch
https://kernel.dance/0e388fce7aec40992eadee654193cad345d62663	Patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04	Mailing List Patch
https://kernel.dance/ef7dfac51d8ed961b742218f526bd589f3900a59	Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef7dfac51d8ed961b742218f526bd589f3900a59	Mailing List Patch
https://security.netapp.com/advisory/ntap-20230731-0001/
https://www.debian.org/security/2023/dsa-5480

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2023-06-28 20:15

Updated : 2023-08-19 18:16

NVD link : CVE-2023-3389

Mitre link : CVE-2023-3389

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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