Use After Free Affecting kernel-tools-devel package, versions <0:4.14.313-235.533.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-5702357
- published 13 Jun 2023
- disclosed 5 Apr 2023
Introduced: 5 Apr 2023
CVE-2023-1838 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.313-235.533.amzn2 or higher.
This issue was patched in ALAS2-2023-2027.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.