High [CVE-2023-2008] improper validation of array index leading to local privilege escalation
This high-severity Red Hat Linux advisory covers CVE-2023-2008 affecting kernel, Red Hat Enterprise Linux 9.0 Extended Update Support.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. This issue occurs due to the lack of proper validation of user-supplied data, which can result in memory access past the end of an array.
This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.
Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.0 Extended Update Support.
- kernel 4.20 before 5.4.202
- kernel 5.5 before 5.10.127
- kernel 5.11 before 5.15.51
- kernel 5.16 before 5.18.8
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 5.4.202
- 5.10.127
- 5.15.51
- 5.18.8
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 5.4.202, 5.10.127, 5.15.51, 5.18.8. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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