CVE-2023-1838 — Use After Free in Kernel
Severity
7.1HIGHNVD
OSV4.7
EPSS
0.0%
top 94.96%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 5
Latest updateAug 19
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2
Affected Packages11 packages
🔴Vulnerability Details
3OSV▶
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities↗2024-04-19
GHSA▶
GHSA-rc9p-5gf8-h3m8: A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net↗2023-04-05
OSV▶
CVE-2023-1838: A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net↗2023-04-05
📋Vendor Advisories
5Microsoft▶
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↗2023-04-11
Debian▶
CVE-2023-1838: linux - A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c ...↗2023
Red Hat
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