CVE-2023-1838
kernel: Possible use-after-free since the two fdget() during vhost_net_set_backend()
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in the virtio network subcomponent in the Linux kernel due to a double fget. This issue could allow a local attacker to crash the system, and could lead to a kernel information leak problem.
Wei Chen discovered that a race condition existed in the TIPC protocol implementation in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service. It was discovered that the virtio network implementation in the Linux kernel did not properly handle file references in the host, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly expose sensitive information.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-04-04 CVE Reserved
- 2023-04-05 CVE Published
- 2024-08-02 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| 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 |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-1838 | 2024-02-20 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2087568 | 2024-02-20 | |
| https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang@redhat.com/T | 2024-02-20 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.13 < 4.14.317 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.13 < 4.14.317" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 4.19.245 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.245" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 5.4.196 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.196" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.5 < 5.10.118 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.118" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11 < 5.15.42 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.42" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.16 < 5.17.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 5.17.10" | - |
Affected
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| Netapp Search vendor "Netapp" | H300s Search vendor "Netapp" for product "H300s" | - | - |
Affected
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| Netapp Search vendor "Netapp" | H410c Search vendor "Netapp" for product "H410c" | - | - |
Affected
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| Netapp Search vendor "Netapp" | H410s Search vendor "Netapp" for product "H410s" | - | - |
Affected
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| Netapp Search vendor "Netapp" | H500s Search vendor "Netapp" for product "H500s" | - | - |
Affected
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| Netapp Search vendor "Netapp" | H700s Search vendor "Netapp" for product "H700s" | - | - |
Affected
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