high
7
CWE
476 416 362
Advisory Published
Updated

CVE-2023-28466: Null Pointer Dereference

First published: Wed Mar 15 2023(Updated: )

do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference).

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel<6.3
6.3
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager<=ISVG 10.0.2
Linux Kernel>=4.13<=5.4.240
Linux Kernel>=5.5<5.10.177
Linux Kernel>=5.11<5.15.105
Linux Kernel>=5.16<6.1.20
Linux Kernel>=6.2<6.2.7
NetApp H300S Firmware
NetApp H410C Firmware
NetApp H410S Firmware
NetApp H500e Firmware
NetApp H700S
Debian=10.0
NetApp Baseboard Management Controller H300S
NetApp Baseboard Management Controller H410C Firmware
NetApp Baseboard Management Controller H410S
NetApp Baseboard Management Controller H500S
NetApp Baseboard Management Controller H700S
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=49c47cc21b5b7a3d8deb18fc57b0aa2ab1286962

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-28466?

    CVE-2023-28466 is classified as a high severity vulnerability due to the risk of race conditions that can lead to use-after-free or NULL pointer dereference issues.

  • How do I fix CVE-2023-28466?

    To mitigate CVE-2023-28466, upgrade to Linux kernel version 6.3 or higher.

  • Which software versions are affected by CVE-2023-28466?

    CVE-2023-28466 affects various versions of the Linux kernel up to 6.2.6 and specific versions of IBM Security Verify Governance components.

  • Is CVE-2023-28466 present in Debian Linux?

    Yes, Debian Linux versions that are part of the vulnerability scope may be affected by CVE-2023-28466.

  • What type of vulnerability is CVE-2023-28466?

    CVE-2023-28466 is a race condition vulnerability that occurs in the do_tls_getsockopt function of the Linux kernel.

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