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CVE-2023-1838

Good to know:

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Date: April 4, 2023

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.

Language: C

Severity Score

Related Resources (7)

https://people.canonical.com/~ubuntu-security/cve/CVE-2023-1838
https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang@redhat.com/T/
https://security.netapp.com/advisory/ntap-20230517-0003/
https://access.redhat.com/security/cve/CVE-2023-1838
https://nvd.nist.gov/vuln/detail/CVE-2023-1838
https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang%40redhat.com/T/
https://www.mend.io/vulnerability-database/CVE-2023-1838

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-libc-headers - 5.14

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): HIGH

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