CVE-2022-36123
HIGHCVSS 7.8/10EPSS 0.85%
Last modified
CVE-2022-36123 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.18.13 |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Netapp | H410c Firmware | All versions |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13Release Notes, Third Party Advisory
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.mdExploit, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220901-0003/Third Party Advisory
- https://sick.codes/sick-2022-128Exploit, Patch, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13Release Notes, Third Party Advisory
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.mdExploit, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220901-0003/Third Party Advisory
- https://sick.codes/sick-2022-128Exploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2022-36123?
CVE-2022-36123 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.
How do I fix CVE-2022-36123?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2022-36123?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST