CVE-2023-1838
Last modified
CVE-2023-1838 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.13, < 4.14.317 |
| Linux | Linux Kernel | >= 4.15, < 4.19.245 |
| Linux | Linux Kernel | >= 4.20, < 5.4.196 |
| Linux | Linux Kernel | >= 5.5, < 5.10.118 |
| Linux | Linux Kernel | >= 5.11, < 5.15.42 |
| Linux | Linux Kernel | >= 5.16, < 5.17.10 |
| Netapp | H300s | All versions |
| Netapp | H410c | All versions |
| Netapp | H410s | All versions |
| Netapp | H500s | All versions |
| Netapp | H700s | All versions |
References
- https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang%40redhat.com/T/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230517-0003/Third Party Advisory, VDB Entry
- https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang%40redhat.com/T/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230517-0003/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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