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CVE-2022-36123 : LINUX KERNEL UP TO 5.18.12 BLOCK STARTING SYMBOL PRIVILEGE ESCALATION

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.

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13

https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884

https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.md

https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0

https://sick.codes/sick-2022-128

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MITRE

Common Vulnerabilityies and Exposures

CVE-2022-36123 : LINUX KERNEL UP TO 5.18.12 BLOCK STARTING SYMBOL PRIVILEGE ESCALATION
CVE-2022-36123 : LINUX KERNEL UP TO 5.18.12 BLOCK STARTING SYMBOL PRIVILEGE ESCALATION

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