CVE-2023-21400 — MEDIUM (6.7)

Vulnerability Description

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Score

6.7

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	-
Debian	Debian Linux	10.0

Related Weaknesses (CWE)

CWE-667

References

http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2023/07/14/2Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/19/2ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/19/7Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/25/7Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20240119-0012/
https://source.android.com/security/bulletin/pixel/2023-07-01Vendor Advisory
https://www.debian.org/security/2023/dsa-5480Third Party Advisory
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2023/07/14/2Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/19/2ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/19/7Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/25/7Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing ListThird Party Advisory

FAQ

What is CVE-2023-21400?

CVE-2023-21400 is a vulnerability with a CVSS score of 6.7 (MEDIUM). In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privile...

How severe is CVE-2023-21400?

CVE-2023-21400 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-21400?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android, Debian Debian Linux.