CVE-2022-36123

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.

CVSS v3.1 NVD

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

EPSS

0.90% chance of exploitation in the next 30 days, 59th percentile

Published

2022-07-29

Updated

2026-10-14

Proof-of-concept exploits (2)

• sickcodes/security/blob/master/advisories/SICK-2022-128.md92★ · 2022-07-29
• https://sick.codes/sick-2022-128

Security advisories

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13
• torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0
• https://security.netapp.com/advisory/ntap-20220901-0003

References

• CVE Record
• NVD entry

Related

• CVE-2020-25507
• CVE-2020-27402
• CVE-2020-27403
• CVE-2021-28918
• CVE-2021-29662
• CVE-2021-29921