CVE-2021-27365

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

CVSS v3.1

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

CVSS v2.0

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

2.08% chance of exploitation in the next 30 days, 80th percentile

Published

2021-03-07

Updated

2024-08-03

Proof-of-concept exploits (2)

• https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html
• WhatsWrongAndWhy/CVE-2021-27365

References

• CVE Record
• NVD entry

Related

• CVE-2015-1328
• CVE-2015-8550
• CVE-2016-8655
• CVE-2016-9793
• CVE-2017-1000112
• CVE-2017-16995